Rak jelita grubego
Zapobieganie i profilaktyka

Rak jelita grubego, będący jednym z najczęstszych nowotworów złośliwych, jest w znacznym stopniu możliwy do zapobiegania poprzez modyfikację stylu życia oraz regularne badania przesiewowe. Kolonoskopia pozostaje złotym standardem w profilaktyce, umożliwiając wykrycie i usunięcie polipów przedrakowych, co istotnie obniża ryzyko rozwoju nowotworu. Zaleca się rozpoczęcie badań przesiewowych od 45. roku życia u osób o przeciętnym ryzyku, a wcześniej u pacjentów z dodatnim wywiadem rodzinnym lub innymi czynnikami ryzyka. Alternatywnie stosuje się testy na krew utajoną w kale co 1-3 lata, z koniecznością kolonoskopii w przypadku wyniku dodatniego. Profilaktyka obejmuje także dietę bogatą w błonnik (25-50 g/dobę, z minimum 90 g pełnoziarnistych produktów dziennie), ograniczenie spożycia czerwonego mięsa do 500 g tygodniowo oraz unikanie mięsa przetworzonego. Regularna aktywność fizyczna (minimum 150 minut umiarkowanego wysiłku tygodniowo) oraz utrzymanie prawidłowej masy ciała są kluczowe w redukcji ryzyka.

  1. Profilaktyka i zapobieganie rakowi jelita grubego
    1. Badania przesiewowe jako kluczowy element profilaktyki
    2. Modyfikacja diety jako element profilaktyki
    3. Aktywność fizyczna
    4. Utrzymanie prawidłowej masy ciała
    5. Ograniczenie spożycia alkoholu
    6. Zaprzestanie palenia tytoniu
    7. Farmakologiczne metody profilaktyki
    8. Szczególne zalecenia dla osób z grup wysokiego ryzyka
  2. Kompleksowe zalecenia profilaktyczne
    1. Kolejne rozdziały

Profilaktyka i zapobieganie rakowi jelita grubego

Rak jelita grubego jest jednym z najczęstszych nowotworów złośliwych na świecie, ale jednocześnie jednym z najbardziej podatnych na działania profilaktyczne. Badania wskazują, że około 45-54% przypadków raka jelita grubego można zapobiec poprzez modyfikację stylu życia oraz regularne badania przesiewowe.12 Wdrożenie odpowiednich działań profilaktycznych pozwala istotnie zmniejszyć zarówno zachorowalność, jak i śmiertelność związaną z tym nowotworem.

Badania przesiewowe jako kluczowy element profilaktyki

Regularne badania przesiewowe są najskuteczniejszą metodą zapobiegania rakowi jelita grubego. Pozwalają one na wykrycie i usunięcie polipów przedrakowych zanim przekształcą się w zmiany nowotworowe, a także na wczesne rozpoznanie choroby, gdy rokowanie jest znacznie lepsze.12

Kolonoskopia pozostaje złotym standardem w wykrywaniu i zapobieganiu rakowi jelita grubego. Procedura ta umożliwia nie tylko dokładne obejrzenie wnętrza jelita, ale również usunięcie polipów podczas tego samego badania, co istotnie obniża ryzyko rozwoju nowotworu.12 Większość ekspertów zaleca rozpoczęcie regularnych badań przesiewowych u osób o przeciętnym ryzyku w wieku 45 lat. U osób z dodatnim wywiadem rodzinnym lub innymi czynnikami ryzyka badania te powinny być rozpoczęte wcześniej.1

Oprócz kolonoskopii dostępne są również inne metody badań przesiewowych, takie jak testy na krew utajoną w kale czy elastyczna sigmoidoskopia. Dla wielu pacjentów z przeciętnym ryzykiem rozwoju raka jelita grubego, testy kałowe wykonywane co 1-3 lata mogą stanowić odpowiednią alternatywę.1 Należy jednak pamiętać, że w przypadku dodatniego wyniku testu kałowego konieczne jest wykonanie kolonoskopii weryfikującej.2

Modyfikacja diety jako element profilaktyki

Dieta odgrywa istotną rolę w profilaktyce raka jelita grubego. Zmiany nawyków żywieniowych mogą znacząco wpłynąć na redukcję ryzyka zachorowania na ten nowotwór.12

Zwiększenie spożycia błonnika

Dieta bogata w błonnik pokarmowy, szczególnie pochodzący z pełnoziarnistych produktów zbożowych, warzyw, owoców i roślin strączkowych, jest związana z obniżonym ryzykiem raka jelita grubego.1 Badania wskazują, że spożywanie minimum 90 gramów pełnoziarnistych produktów dziennie może zmniejszyć ryzyko raka jelita grubego o około 17%.1 Minimalna zalecana ilość błonnika to 25-35 gramów dziennie, choć niektóre badania sugerują, że dla optymalnej profilaktyki wartość ta powinna wynosić około 50 gramów dziennie.12

Ograniczenie spożycia mięsa czerwonego i przetworzonego

Liczne badania wykazały związek między wysokim spożyciem czerwonego mięsa (wołowina, wieprzowina, jagnięcina) oraz mięsa przetworzonego (wędliny, parówki, konserwy mięsne) a zwiększonym ryzykiem raka jelita grubego.12 Zaleca się ograniczenie spożycia czerwonego mięsa do maksymalnie 18 uncji (około 500 gramów) tygodniowo lub trzech porcji tygodniowo, a mięsa przetworzonego należy unikać całkowicie lub spożywać je bardzo rzadko.12

Zwiększenie spożycia warzyw i owoców

Dieta bogata w warzywa, owoce i produkty pełnoziarniste jest związana z niższym ryzykiem raka jelita grubego. Produkty te zawierają witaminy, minerały, błonnik i antyoksydanty, które mogą odgrywać rolę w profilaktyce nowotworowej.12 Szczególnie korzystne wydaje się być spożywanie czosnku, który według badań może obniżać ryzyko raka jelita grubego.1

Inne aspekty żywieniowe

Produkty mleczne i suplementy wapnia są związane ze zmniejszonym ryzykiem raka jelita grubego.12 Badania wskazują również na potencjalną rolę witaminy D w profilaktyce tego nowotworu, choć wyniki nie są jednoznaczne i potrzebne są dalsze badania.1

Ogólnie zaleca się dietę typu śródziemnomorskiego, bogatą w produkty roślinne, ryby, oliwę z oliwek, a ubogą w czerwone mięso i przetworzoną żywność.1

Aktywność fizyczna

Regularna aktywność fizyczna jest kolejnym ważnym czynnikiem w profilaktyce raka jelita grubego. Badania wskazują, że osoby aktywne fizycznie mają o 16-30% niższe ryzyko rozwoju raka okrężnicy (choć w przypadku raka odbytnicy związek ten jest mniej jednoznaczny).12

Zaleca się co najmniej 150 minut umiarkowanej aktywności fizycznej tygodniowo lub 75 minut intensywnej aktywności.1 Idealne minimum to 30 minut umiarkowanego wysiłku fizycznego przez większość dni tygodnia, choć niektóre badania sugerują, że optymalny efekt profilaktyczny uzyskuje się przy 30-60 minutach dziennie.12

Ważne jest również ograniczenie czasu spędzanego w pozycji siedzącej, gdyż siedzący tryb życia jest niezależnym czynnikiem ryzyka raka jelita grubego.12

Utrzymanie prawidłowej masy ciała

Nadwaga i otyłość są istotnymi czynnikami ryzyka raka jelita grubego. Australijska analiza wykazała, że 10,1% przypadków raka okrężnicy i 5,8% przypadków raka odbytnicy można przypisać nadwadze i otyłości.1 U mężczyzn z otyłością ryzyko raka jelita grubego jest o około 50% wyższe niż u osób z prawidłową masą ciała, podczas gdy u kobiet z otyłością wzrost ryzyka wynosi około 10%.1

Dlatego utrzymanie prawidłowej masy ciała poprzez zbilansowaną dietę i regularną aktywność fizyczną jest kluczowym elementem profilaktyki raka jelita grubego.12

Ograniczenie spożycia alkoholu

Spożywanie alkoholu jest związane ze zwiększonym ryzykiem raka jelita grubego i co najmniej sześciu innych typów nowotworów.1 Szacuje się, że około 6% przypadków raka jelita grubego w Wielkiej Brytanii jest związanych ze spożyciem alkoholu.1 W Stanach Zjednoczonych około 13% przypadków raka jelita grubego przypisuje się konsumpcji alkoholu.1

Osoby regularnie spożywające 3,5 drinka dziennie mają 1,5 razy większe ryzyko rozwoju raka jelita grubego w porównaniu do osób niepijących lub pijących okazjonalnie.1 Raport Światowego Funduszu Badań nad Rakiem (WCRF) wykazał, że spożywanie dwóch lub więcej drinków dziennie zwiększa ryzyko raka jelita grubego.1

Zaleca się całkowitą rezygnację z alkoholu lub ograniczenie jego spożycia do maksymalnie jednego drinka dziennie dla kobiet i dwóch dla mężczyzn.12

Zaprzestanie palenia tytoniu

Palenie tytoniu jest istotnym czynnikiem ryzyka wielu nowotworów, w tym raka jelita grubego. Osoby palące mają o około 50% wyższe ryzyko rozwoju raka jelita grubego niż osoby, które nigdy nie paliły.1 W Stanach Zjednoczonych około 12% przypadków raka jelita grubego przypisuje się obecnemu lub byłemu używaniu tytoniu.2

Palenie zwiększa ryzyko rozwoju polipów przedrakowych i raka jelita grubego.1 Osoby palące, które przeszły operację usunięcia polipów jelita grubego, mają zwiększone ryzyko nawrotu polipów.1

Zaprzestanie palenia jest więc istotnym elementem profilaktyki raka jelita grubego.12

Farmakologiczne metody profilaktyki

Kwas acetylosalicylowy i niesteroidowe leki przeciwzapalne

Badania wykazały, że kwas acetylosalicylowy (aspiryna) i inne niesteroidowe leki przeciwzapalne (NLPZ) mogą zmniejszać ryzyko raka jelita grubego.12 Regularne przyjmowanie aspiryny wiąże się z 27% niższym ryzykiem raka jelita grubego.1

Długotrwałe stosowanie (pięć lat lub dłużej) aspiryny w dawce co najmniej 75 mg dziennie może zmniejszyć ryzyko raka jelita grubego.12 Badania wskazują, że ryzyko raka jelita grubego maleje wraz z wydłużaniem czasu stosowania aspiryny w małej dawce, z 9% spadkiem przy 3-letnim stosowaniu, 15% przy stosowaniu przez 3-5 lat i 16% spadkiem przy stosowaniu przez ponad 5 lat.1

U osób z zespołem Lyncha (dziedziczny rak jelita grubego niezwiązany z polipowatością) codzienne przyjmowanie aspiryny może zmniejszyć ryzyko raka jelita grubego i innych nowotworów. W jednym badaniu osoby, które przyjmowały 600 mg aspiryny dziennie przez dwa lata lub dłużej, miały 60% niższe ryzyko rozwoju raka jelita grubego.1

Należy jednak pamiętać, że aspiryna i NLPZ mogą powodować działania niepożądane, takie jak krwawienia z przewodu pokarmowego i owrzodzenia. Dlatego przed rozpoczęciem regularnego przyjmowania tych leków w celu profilaktyki raka jelita grubego konieczna jest konsultacja z lekarzem.12

Amerykańska Grupa Zadaniowa ds. Usług Profilaktycznych (USPSTF) zaleca rozważenie stosowania małych dawek aspiryny u osób w wieku 50-59 lat, u których 10-letnie ryzyko chorób sercowo-naczyniowych wynosi 10% lub więcej, które nie mają zwiększonego ryzyka krwawień i mogą przyjmować aspirynę przez co najmniej 10 lat.12

Hormonalna terapia zastępcza

Badania wykazały, że stosowanie hormonalnej terapii zastępczej (HTZ) u kobiet po menopauzie może zmniejszać ryzyko raka jelita grubego.12 Wapń i witamina D mogą działać synergistycznie, zmniejszając ryzyko raka jelita grubego.1

Należy jednak pamiętać, że HTZ wiąże się z innymi potencjalnymi zagrożeniami dla zdrowia, dlatego decyzja o jej stosowaniu powinna być podjęta indywidualnie po konsultacji z lekarzem.1

Szczególne zalecenia dla osób z grup wysokiego ryzyka

Osoby z wysokim ryzykiem raka jelita grubego wymagają szczególnego podejścia do profilaktyki. Do grup wysokiego ryzyka należą osoby z:

U tych osób zaleca się:

  • Wcześniejsze rozpoczęcie badań przesiewowych (często w wieku 40 lat lub 10 lat przed wiekiem, w którym u najmłodszego krewnego pierwszego stopnia zdiagnozowano raka jelita grubego)12
  • Częstsze wykonywanie kolonoskopii (co 1-5 lat, w zależności od indywidualnego ryzyka)12
  • W przypadku zespołów dziedzicznego raka jelita grubego badania przesiewowe mogą rozpoczynać się w dzieciństwie lub wczesnej dorosłości i często obejmują coroczne kolonoskopie1

W przypadku zespołu rodzinnej polipowatości gruczolakowej (FAP) lub zespołu Lyncha można rozważyć profilaktyczne usunięcie całego jelita grubego (kolektomia profilaktyczna) w celu zapobieżenia rozwojowi raka.12

Osoby z grupy wysokiego ryzyka mogą odnieść korzyść z poradnictwa genetycznego i badań genetycznych, które pomagają określić indywidualne ryzyko i zaplanować odpowiednie działania profilaktyczne.12

Kompleksowe zalecenia profilaktyczne

Podsumowując, najważniejsze zalecenia w profilaktyce raka jelita grubego obejmują:

  1. Regularne badania przesiewowe:
    • Rozpoczęcie kolonoskopii od 45. roku życia u osób z przeciętnym ryzykiem1
    • Wcześniejsze rozpoczęcie badań u osób z grup wysokiego ryzyka1
  2. Zdrowa dieta:
    • Wysoka zawartość błonnika (25-50 g dziennie)12
    • Ograniczenie czerwonego mięsa do 3 porcji tygodniowo1
    • Unikanie przetworzonego mięsa1
    • Zwiększenie spożycia warzyw, owoców i pełnoziarnistych produktów zbożowych1
    • Uwzględnienie produktów mlecznych w diecie1
  3. Regularna aktywność fizyczna:
    • Minimum 150 minut umiarkowanej aktywności tygodniowo1
    • Ograniczenie czasu spędzanego w pozycji siedzącej1
  4. Utrzymanie prawidłowej masy ciała1
  5. Ograniczenie lub unikanie alkoholu1
  6. Zaprzestanie palenia tytoniu1
  7. Rozważenie farmakologicznej profilaktyki u wybranych osób:
    • Kwas acetylosalicylowy u osób z podwyższonym ryzykiem chorób sercowo-naczyniowych1
    • Hormonalna terapia zastępcza u kobiet po menopauzie (po indywidualnej ocenie korzyści i ryzyka)1

Rak jelita grubego jest jednym z najczęstszych nowotworów, ale jednocześnie jednym z najbardziej podatnych na działania profilaktyczne. Kompleksowe podejście do profilaktyki, obejmujące regularne badania przesiewowe oraz zdrowy styl życia, może znacząco zmniejszyć ryzyko zachorowania na ten nowotwór i poprawić rokowanie w przypadku jego rozpoznania.12

Kolejne rozdziały

Zapraszamy do dalszego czytania naszego leksykonu.

Wybierz kolejny rozdział z menu poniżej, aby otworzyć nową podstronę kompedium wiedzy i uzyskać szczegółowe informację o leku, substancji lub chorobie.

  1. 18.04.2026
  2. www.leksykon.com.pl

Materiały źródłowe

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    https://www.wcrf.org/preventing-cancer/cancer-types/bowel-cancer/preventing-bowel-cancer/
    Bowel cancer is one of the most common cancers in the UK and worldwide, but it is also one of the most preventable. Making changes to your diet and lifestyle can significantly reduce your risk. […] Around 45% of bowel cancer cases could be prevented by following our Cancer Prevention Recommendations. Here are 6 ways to reduce your bowel cancer risk, based on research from our Global Cancer Update Programme. […] Eating a fibre-rich diet, including wholegrains, can reduce bowel cancer risk. […] Eating processed meat, such as ham, bacon and sausages, and too much red meat, including beef, pork and lamb, increases bowel cancer risk. […] Regular physical activity helps reduce bowel cancer risk by helping you maintain a healthy weight and supporting digestion. […] Maintaining a healthy weight can reduce your risk of 13 different types of cancer, including bowel cancer.
  • #1 Reducing Risk for Colorectal Cancer | Colorectal Cancer | CDC
    https://www.cdc.gov/colorectal-cancer/prevention/index.html
    The most effective way to reduce your risk of colorectal cancer is to get screened regularly, beginning at age 45. […] A diet low in animal fats and rich in fruits, vegetables, and whole grains may reduce the risk of colorectal cancer. […] Colorectal cancer screening can find precancerous polyps so they can be removed before they turn into cancer. In this way, colorectal cancer is prevented. […] Some studies suggest that people may reduce their risk of developing colorectal cancer by: Increasing physical activity. […] Keeping a healthy weight. […] Eating a diet low in animal fats and high in fruits, vegetables, and whole grains. […] Limiting alcohol consumption. […] Avoiding tobacco. […] If you are age 45 or older, get screened for colorectal cancer.
  • #1 5 Things To Know About Colon Cancer Prevention and Screening < Yale School of Medicine
    https://medicine.yale.edu/news-article/five-things-to-know-about-colon-cancer-prevention-and-screening/
    Colorectal cancer is the third most common cancer in the United States, and more than 150,000 people will be diagnosed with colorectal cancer this year. […] In response to the rise in colon cancer among younger people, the United States Preventative Services Task Force (USPTF) has endorsed screening for average-risk patients at age 45. Unfortunately, many younger adults are still not getting screened. Getting screened early could save your life, Llor said. […] Research shows that approximately 5-6% of colorectal cancers are associated with a genetic factor. […] For many years, colonoscopies were thought of as the only colorectal cancer screening option. In recent years, organizations like the USPTF, American Cancer Society, and American Gastroenterological Association have encouraged the use of stool-based tests for certain patients. […] More than a third of patients over 50 who have a colonoscopy will have polyps, which are abnormal growths on the inner walls of the colon or rectum. A very small percentage of polyps progress into cancer.
  • #1 Screening for Colorectal Cancer | Colorectal Cancer | CDC
    https://www.cdc.gov/colorectal-cancer/screening/index.html
    Colorectal cancer almost always develops from precancerous polyps (abnormal growths) in the colon or rectum. Screening tests can find precancerous polyps, so that they can be removed before they turn into cancer. Screening tests can also find colorectal cancer early, when treatment works best. […] Most people should begin screening for colorectal cancer soon after turning 45, then continue getting screened at regular intervals. However, you may need to be tested earlier than 45, or more often than other people, if you have: […] If you think you are at increased risk for colorectal cancer, speak with your doctor about: […] Several screening tests can be used to find polyps or colorectal cancer. […] It is important to know that if your test result is positive or abnormal on some screening tests (stool tests, flexible sigmoidoscopy, and computed tomography colonography), a colonoscopy test is needed to complete the screening process. […] Colonoscopy also is used as a follow-up test if anything unusual is found during one of the other screening tests.
  • #1 Colorectal Cancer Prevention: How to Lower Your Risk and Stay Healthy
    https://www.cbwchc.org/news/colorectal-cancer-prevention
    People at average risk are recommended to start regular screening at age 45. If you have a family history of colorectal cancer, inflammatory bowel disease, or other risk factors, your doctor may recommend starting screening at an earlier age. […] Screening tests allow doctors to find colorectal cancer or precancerous polyps before symptoms appear. By detecting it early, treatment can begin before the polyp has a chance to develop into cancer, or if there is already cancer, prevent it from spreading. […] Stool-based tests are recommended for individuals at average risk; they are done at more regular intervals than colonoscopies because they are less sensitive. Usually, this is every 1-3 years depending on the test. Always discuss with your provider about the best screening programs for you.
  • #1 Primary Prevention of Colorectal Cancer
    https://pmc.ncbi.nlm.nih.gov/articles/PMC2947820/
    Colorectal cancer has been strongly associated with a Western lifestyle. […] Several studies have shown that high intake of red and processed meats, highly refined grains and starches, and sugars is related to increased risk of colorectal cancer. Replacing these factors with poultry, fish, and plant sources as the primary source of protein; unsaturated fats as the primary source of fat; and unrefined grains, legumes and fruits as the primary source of carbohydrates is likely to lower risk of colorectal cancer. […] Compelling evidence indicates that avoidance of smoking and heavy alcohol use, prevention of weight gain, and the maintenance of a reasonable level of physical activity are associated with markedly lower risks of colorectal cancer. […] Medications such as aspirin and non-steroidal anti-inflammatory drugs and post-menopausal hormones for women are associated with significant reductions in colorectal cancer risk, though their utility is affected by associated risks.
  • #1 Modifiable Risk Factors for Bowel Cancer
    https://www.bowelcanceraustralia.org/bowel-cancer/modifable-risk-factors/
    Diet and lifestyle choices, as well as screening and surveillance, can influence your bowel cancer risk. […] Research indicates up to 32% of bowel cancer cases may be prevented by endoscopic screening alone (flexible sigmoidoscopy / colonoscopy) and, when combined with the 5 healthy lifestyle factors* increased to 61%. […] If you choose to drink alcohol, limit the amount. […] Long-term use (five years or more) of at least 75mg per day of aspirin can decrease the risk of bowel cancer. […] Keep your weight within the healthy range and avoid weight gain in adult life. […] Dairy products and calcium supplements are associated with a decreased risk of bowel cancer. […] Recreational physical activity can reduce colon (not rectal) cancer by 16%. […] Participate in screening appropriate to your personal level of risk. […] If you eat red meat, limit the amount to no more than about three portions per week. […] Quit smoking and avoid exposure to tobacco smoke. […] Eating at least 90 grams of wholegrains a day, such as brown rice or wholemeal bread, can reduce the risk of bowel cancer by 17%.
  • #1
    https://fascrs.org/patients/diseases-and-conditions/a-z/six-steps-to-lowering-your-risk-of-colon-cancer
    Get regular colorectal cancer screenings beginning at age 45.* If you have a personal or family history of colorectal cancer or colorectal polyps, or a personal history of another cancer or inflammatory bowel disease, talk to your doctor about earlier screening. […] Eat plenty of fiber. Eat between 25 to 35 grams of fiber each day. Fruits, vegetables, whole grain bread and cereals, nuts and beans are excellent sources of fiber. […] Eat a low-fat, healthy diet. Diets that include fruits, vegetables, and whole grains have reduced risk of colorectal cancer. Also, limit red meat (beef, pork, lamb) and processed meats (salami, hot dogs) as these have been linked to an increased risk of colorectal cancer. […] Limit alcohol and don’t use tobacco. Alcohol and tobacco are linked to colorectal cancer and other gastrointestinal cancers. If you use tobacco, quit. If you use alcohol, drink only in moderation. The American Cancer Society recommends no more than 2 drinks a day for men and 1 drink a day for women.
  • #1 Prevention | Colorectal Cancer Alliance
    https://colorectalcancer.org/screening-prevention/prevention
    You may be able to lower your colorectal cancer risk with some simple lifestyle changes. Be proactive about staying as healthy as possible. […] While screening is the most important step you can take to prevent colorectal cancer, its not the only one. […] While colorectal cancer can be both genetic and random in nature, there are several proven ways you can reduce your chances of getting this common cancer. […] Diets high in red meat have been linked to colorectal cancer. Try to keep your red meat intake to 18 ounces per week or less. […] Processed meats should be avoided if possible. These meats include hot dogs, ham, bacon, and sausage. Cancer risk increases even with low consumption. […] Diets high in vegetables, fruits and other plant foods reduce risk for many diseases, including colorectal cancer.
  • #1 Reducing colorectal cancer risk – Mayo Clinic Health System
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    Colorectal cancer is cancer of the large intestine (colon) or the rectum. Following your health care team’s recommended screening schedule is the best way to reduce your risk of developing colorectal cancer. This may include a colonoscopy or other screening methods, beginning at age 45. […] Talk to your health care team about your colorectal cancer screening options. Learn what to expect before, during and after a colonoscopy. […] You can help reduce your risk of colorectal cancer if you: […] Eat your veggies and healthy fats. Research has shown that the Western diet correlates to higher colorectal cancer rates. People who eat high-fiber diets are less likely to develop the disease. Fruits, vegetables and whole grains contain vitamins, minerals, fiber and antioxidants, which may play a role in cancer prevention. Choose a variety of fruits and vegetables to get an array of vitamins and nutrients.
  • #1 Colorectal Cancer Prevention Nutrition Services | Stanford Health Care
    https://stanfordhealthcare.org/medical-clinics/cancer-nutrition-services/reducing-cancer-risk/colorectal-cancer-prevention-diet.html
    Nutrition is an important part of life, cancer treatment, recovery, and prevention. […] Certain risk factors for colorectal cancer can be reduced by: Maintaining a healthy weight, Keeping physically active, Making smart food choices. […] If you are overweight or obese, weight loss is an important first step in reducing your risk of colorectal cancer development and recurrence. […] Aim for at least 30 minutes of moderate to vigorous activity daily. […] Plant-based, high-fiber diets that are moderate to low in red meat with minimal processed meat and alcohol have been shown to reduce colorectal cancer risk. […] Research now shows that garlic is helpful in prevention of colorectal cancer so be sure to include it in your meals daily. […] For this reason, it is recommended to consume 18 ounces or less of red meat weekly. […] It is recommended to eat processed meats rarely or not at all. […] Avoid alcohol or if you choose to drink you should limit intake to 1 drink (12 oz. beer, 5 ounce wine, 1.5 oz. liquor) per day.
  • #1 Reducing your risk for colorectal cancer | Canadian Cancer Society
    https://cancer.ca/en/cancer-information/cancer-types/colorectal/risks/reducing-your-risk
    You may lower your risk of developing colorectal cancer by doing the following. […] Research shows that regular physical activity can lower your risk for colorectal cancer. […] Research also shows that sedentary time, or sitting time, increases your risk for colorectal cancer. […] Research shows that being overweight or obese increases your risk for colorectal cancer. […] Drinking alcohol increases your risk of developing colorectal cancer. […] Smoking tobacco increases the risk of precancerous conditions and cancer of the colon or rectum. […] Diets that are high in red meat or include processed meats increase the risk for colorectal cancer. […] Research shows that eating foods containing dietary fibre lowers the risk of colorectal cancer. […] Research shows that eating dairy products lowers the risk for colorectal cancer.
  • #1 Colorectal Cancer Prevention | How to Prevent Colorectal Cancer | American Cancer Society
    https://www.cancer.org/cancer/types/colon-rectal-cancer/causes-risks-prevention/prevention.html
    Limiting red and processed meats and eating more vegetables, fruits, and whole grains may help lower your risk. […] Not drinking alcohol may help reduce your risk. […] Quitting smoking may help lower you risk of colorectal cancer and many other types of cancer, too. […] Some studies suggest that taking a daily multivitamin containing folic acid may lower colorectal cancer risk, but not all studies have found this. […] More research is needed to determine if increasing vitamin D intake from a supplement can help prevent colorectal cancer. […] Calcium and vitamin D might work together to reduce colorectal cancer risk. […] Many studies have found that people who regularly take aspirin or other nonsteroidal anti-inflammatory drugs (NSAIDs) have a lower risk of colorectal cancer and polyps.
  • #1 Primary Prevention of Colorectal Cancer
    https://pmc.ncbi.nlm.nih.gov/articles/PMC2947820/
    Modifications in diet and lifestyle should substantially reduce the risk of colorectal cancer and could complement screening in reducing colorectal cancer incidence. […] In summary, increasing intake of fruits, vegetables, or fiber is unlikely to prevent a large proportion of colorectal cancers, particularly among a U.S. population, which has a food supply already fortified with folate and other dietary factors that might protect against colorectal neoplasia. […] Limiting intake of processed meat and red meat, especially after high-temperature cooking, and replacing these foods with poultry or fish as alternative protein sources could be a reasonable approach to reducing risk of colorectal cancer. […] There is compelling evidence that avoidance of smoking and heavy alcohol use, prevention of weight gain, and the maintenance of a reasonable level of physical activity can each have a positive influence on risk of colorectal cancer.
  • #1 Colorectal cancer – Wikipedia
    https://en.wikipedia.org/wiki/Colorectal_cancer
    Higher physical activity is recommended. Physical exercise is associated with a modest reduction in colon but not rectal cancer risk. High levels of physical activity reduce the risk of colon cancer by about 21%. […] Aspirin and celecoxib appear to decrease the risk of colorectal cancer in those at high risk. Aspirin is recommended in those who are 50 to 60 years old, do not have an increased risk of bleeding, and are at risk for cardiovascular disease to prevent colorectal cancer. […] As more than 80% of colorectal cancers arise from adenomatous polyps, screening for this cancer is effective for both early detection and prevention. […] The three main screening tests are colonoscopy, fecal occult blood testing, and flexible sigmoidoscopy. […] Screening has the potential to reduce colorectal cancer deaths by 60%.
  • #1 Prevention Tips – The Mount Sinai Hospital | Mount Sinai – New York
    https://www.mountsinai.org/care/cancer/services/colon/prevention-tips
    While screening is the most effective way to prevent colon and rectal cancer, studies show that there are lifestyle-related steps that might decrease your chances of developing colon and rectal cancer: […] Eating plenty of fruits, vegetables, and whole grain foods (and limiting the amount of red and processed meat in your diet) is one of the best things you can do to lower your risk of colon and rectal cancer. […] Physical inactivity increases your risk of developing colon and rectal cancer. The American Cancer Society recommends at least 150 minutes of moderate intensity activity (such as brisk walking), or 75 minutes of vigorous intensity activity (activity that results in a faster heart rate, deeper breathing, and sweating), each week. […] Being overweight is linked to a variety of cancers, not just colon and rectal cancers.
  • #1 Seven ways to reduce your risk of bowel cancer – UK Health Security Agency
    https://ukhsa.blog.gov.uk/2019/04/01/seven-ways-to-reduce-your-risk-of-bowel-cancer/
    People who are more physically active have a lower risk of developing bowel cancer. […] Alcohol is linked to seven types of cancer, including bowel cancer. It is estimated that about 6 out of 100 bowel cancers (6%) in the UK are linked to alcohol. […] An estimated 7% of bowel cancer cases in the UK are linked to tobacco smoking, and bowel cancer risk increases with the number of cigarettes smoked per day. […] The NHS Bowel Cancer Screening Programme can detect bowel cancer at an early stage in people with no symptoms, when it is easier to treat and the chance of survival is greater.
  • #1 Prevention | Bowel Cancer | Early Detection Policy | Cancer Council
    https://www.cancer.org.au/about-us/policy-and-advocacy/early-detection/bowel-cancer/prevention
    Bowel cancer is increasingly linked to lifestyle; in recent decades, there has been considerable interest in identifying modifiable risk factors. […] Research into preventable risk factors for bowel cancer has focused mainly on: diet (including nutritional supplements); body weight and lifestyle factors such as physical activity; smoking; and intake of aspirin and other non-steroidal anti-inflammatory drugs. […] An Australian analysis estimated 10.1% of colon and 5.8% of rectum cancers diagnosed in 2010 were attributable to overweight and obesity. […] A number of studies have also shown that smoking is a risk factor for bowel cancer and precancerous adenomas. […] A report released by WCRF in 2018 found that consuming two or more alcoholic drinks per day increases the risk of bowel cancer.
  • #1 Colon Cancer Prevention: 6 Tips for Reducing Your Risk
    https://www.healthline.com/health/colorectal-cancer/colon-cancer-prevention
    Regular exercise can help you manage your weight and reduce your risk of colon cancer. […] Due to the nature of colon cancer, screening tests are done before signs and symptoms may develop. […] Colorectal cancer screening via traditional colonoscopy is typically recommended every 10 years starting at age 45. However, your doctor may recommend testing sooner and more often if you’re at higher risk. […] In the United States, about 13 percent of colon cancers are attributed to alcohol consumption, and 12 percent to current or former tobacco use. […] Current smokers are at a 50 percent higher risk of developing colon cancer than those who never smoked. […] Men with obesity have about a 50 percent higher risk of colon cancer than people without obesity, while women with obesity have about a 10 percent increased risk.
  • #1 Preventing bowel cancer | How you can reduce the risk
    https://www.wcrf.org/preventing-cancer/cancer-types/bowel-cancer/preventing-bowel-cancer/
    Drinking alcohol increases the risk of bowel cancer and at least 6 other cancers. […] Smoking is a major risk factor for many cancers, including bowel cancer. Quitting smoking can significantly reduce your risk. […] This research showed strong evidence that certain combinations of behaviour reduced the risk of bowel cancer. […] We estimate that around 45% of bowel cancer cases in the UK could be prevented if we all made changes to our diets such as eating more wholegrains, and eating less red and no processed meat. […] Food that has been found to help reduce your cancer risk include: Wholegrains, Beans, legumes and pulses, Fruit and vegetables, Fish. […] Replacing red and processed meat with chicken, fish, eggs, pulses and soya-based food like tempeh and tofu is a great way to help reduce your risk of bowel cancer. […] Moderately intense physical activity, such as brisk walking, can help reduce your risk of cancer of the colon, a part of the bowel.
  • #1 Prevention | Colorectal Cancer Alliance
    https://colorectalcancer.org/screening-prevention/prevention
    Increasing your physical activity can reduce your risk of developing colorectal cancer by 30 to 40 percent. […] 30 to 60 minutes of moderate to vigorous physical activity per day is needed to protect against colorectal cancer. […] Exercise also helps you to maintain a healthy body weight, which reduces your risk for colorectal cancer. […] Although modest amounts of some alcohols have been linked to protecting against coronary heart disease, alcohol is known to increase cancer risk. […] According to the National Cancer Institute, people who regularly drink 3.5 drinks per day have 1.5 times the risk of developing colorectal cancer as nondrinkers or occasional drinkers. If you do chose to drink, try to limit your consumption. […] Long-term cigarette smoking is also associated with increased risk of colorectal cancer. The longer a person smokes, the greater the risk.
  • #1 Colorectal Cancer Prevention and Screening | UCSF Health
    https://www.ucsfhealth.org/education/colorectal-cancer-prevention-and-screening
    Maintain a healthy weight. Being obese or overweight increases your chances of developing colorectal cancer. […] Don’t smoke. Smoking cigarettes is linked with a higher risk of colorectal and other types of cancer. […] Avoid alcohol. Not drinking at all may reduce your risk. If you do drink, women should limit consumption to no more than one drink a day, and men to two drinks a day. […] Take a low dose of aspirin daily. Aspirin can reduce the development of polyps, particularly in patients with a previous history of polyps or colorectal cancer. […] Screening is for patients who show no symptoms of cancer. It is a preventive measure that anyone can take to catch abnormal cells early on. […] Polyps usually take about 10 to 15 years to develop into colorectal cancer. If theyre detected early, they can be removed before they turn into cancerous cells. Regular screenings also help to catch cancer cells in their early stages, when treatment is more effective.
  • #1 Colorectal Cancer Prevention (PDQ®): Prevention – Patient Information [NCI] | Kaiser Permanente
    https://healthy.kaiserpermanente.org/health-wellness/health-encyclopedia/he.colorectal-cancer-prevention-pdq%C2%AE-prevention-patient-information-nci.ncicdr0000258007
    Inherited risk. The risk of colorectal cancer is increased when certain gene changes linked to familial adenomatous polyposis (FAP) or hereditary nonpolyposis colon cancer (HNPCC or Lynch Syndrome) are inherited. […] Alcohol. Drinking 3 or more alcoholic beverages per day increases the risk of colorectal cancer. Drinking alcohol is also linked to the risk of forming large colorectal adenomas (benign tumors). […] Cigarette smoking. Cigarette smoking is linked to an increased risk of colorectal cancer and death from colorectal cancer. […] Smoking cigarettes is also linked to an increased risk of forming colorectal adenomas. Cigarette smokers who have had surgery to remove colorectal adenomas are at an increased risk for the adenomas to recur (come back). […] Race. Black individuals have an increased risk of colorectal cancer and death from colorectal cancer compared to other races.
  • #1
    https://journals.lww.com/ajg/fulltext/2024/07000/low_dose_aspirin_and_prevention_of_colorectal.29.aspx
    To examine the association between low-dose aspirin use and risk of colorectal cancer (CRC). […] Current use of aspirin vs never use was associated with lower CRC risk (hazard ratio [HR] 0.87, 95% confidence interval [CI] 0.840.90). […] In this nationwide cohort, use of low-dose aspirin was associated with a lower risk of CRC. […] Aspirin has been long regarded as the most promising preventive agent against CRC. […] Regular aspirin use was associated with 27% lower CRC risk. […] In this large population-based cohort of individuals aged 50 years or older, we found an association between low-dose aspirin use and lower CRC risk. […] The association was similar in men and women, in individuals younger than 70 years and those aged 70 years or older, and for cancer in the proximal colon, distal colon, and rectum, but it was more profound for metastatic CRC than CRC diagnosed in earlier stages.
  • #1 Colorectal cancer prevention | Knowledge for policy
    https://knowledge4policy.ec.europa.eu/health-promotion-knowledge-gateway/colorectal-cancer_en
    Colorectal cancer can be linked to both modifiable and non-modifiable risk factors. […] Modifiable risk factors for colorectal cancer include unhealthy diet, alcohol use, physical inactivity and tobacco use. […] Additionally, it has been shown that 'Long-term use (five years or more) of at least 75 mg per day of the non-steroidal anti-inflammatory drug aspirin can reduce the risk of colorectal cancer’ while 'hormone therapy in postmenopausal women also decreases colorectal cancer risk’. […] Many countries across the EU have taken action and established strategies to tackle cancer. […] These primary cancer-prevention actions focus on cancer risk factors and screening programmes. […] As many colorectal cancer risk factors are shared with other chronic diseases, primary prevention strategies that address tobacco control, harmful use of alcohol, and promotion of healthy diet and lifestyle, target at the same time multiple chronic diseases and cancers.
  • #1
    https://journals.lww.com/ajg/fulltext/2024/07000/low_dose_aspirin_and_prevention_of_colorectal.29.aspx
    The CRC risk decreased as the duration of low-dose aspirin use increased. […] Use of 160 mg tablets was associated with a greater CRC risk reduction than the use of 75 mg tablets. […] We found a significant trend in CRC risk reduction with longer durations of low-dose aspirin exposure, with 9% decrease for 3 years, 15% for 3 and 5 years, and 16% decrease for 5 years of low-dose aspirin use vs never use. […] By assuming a protective effect of aspirin against CRC, we estimated that 1,073 cases with CRC were prevented by aspirin use, equating to 2.7% lower CRC incidence. […] Our study provided novel and strong evidence that low-dose aspirin use is associated with a lower CRC risk. […] Based on our results, we believe that new RCT are urgently needed to confirm the potential protective effect of aspirin against CRC and to identify subgroups in the population who might benefit the most from the use of aspirin.
  • #1
    https://www.facingourrisk.org/info/risk-management-and-treatment/screening-and-risk-reduction/by-cancer-type/colorectal/medications-to-reduce-risk
    In people with Lynch syndrome, daily aspirin may decrease the risk for colon cancer and other cancers. In one study, people who took 600 mg of aspirin daily for two years or more had a 60 percent decrease in their risk for colorectal cancer. […] More studies are needed to help experts understand the best dose and duration of aspirin to protect people with Lynch syndrome from colorectal cancer. […] In people with the rare syndrome Familial Adenomatous Polyposis (FAP), caused by an inherited mutation in the APC gene, the drugs Sulindac and celexicob have been shown to lower the risk for polyps. […] Currently, there is not enough evidence to support using of any of these other agents to lower the risk for colorectal cancer.
  • #1 Colon cancer – Symptoms and causes – Mayo Clinic
    https://www.mayoclinic.org/diseases-conditions/colon-cancer/symptoms-causes/syc-20353669
    Colon cancer happens when cells in the colon develop changes in their DNA. […] Doctors recommend that people with an average risk of colon cancer consider starting colon cancer screening around age 45. But people with an increased risk should think about starting screening sooner. People with an increased risk include those with a family history of colon cancer. […] Making changes in everyday life can reduce the risk of colon cancer. To lower the risk of colon cancer: Eat a variety of fruits, vegetables and whole grains. Fruits, vegetables and whole grains have vitamins, minerals, fiber and antioxidants, which may help prevent cancer. […] Some medicines can reduce the risk of colon polyps or colon cancer. For instance, some evidence links a reduced risk of polyps and colon cancer to regular use of aspirin or aspirin-like medicines. But it’s not clear what dose and what length of time would be needed to reduce the risk of colon cancer. Taking aspirin daily has some risks, including ulcers and bleeding in the digestive system. […] If you have an increased risk of colon cancer, discuss your risk factors with your health care team to see if preventive medicines are safe for you.
  • #1 Aspirin for Colon Cancer Risk Prevention | AAFP
    https://www.aafp.org/pubs/afp/issues/2019/1101/od2.html
    Daily low-dose aspirin can be offered to patients older than 50 years for colon cancer prevention. (Strength of Recommendation: B, based on multiple meta-analyses but undermined by one large randomized controlled trial [RCT].) […] When aspirin is taken daily for at least 10 years, it decreases mortality risk from colorectal cancer (CRC; number needed to treat [NNT] = 1,500 person-years), decreases the risk of metastasis in patients with localized adenocarcinoma, and decreases CRC stage at diagnosis. […] In 2016, the U.S. Preventive Services Task Force recommended that adults 50 to 59 years with a 10% or greater 10-year CVD risk and sufficient life expectancy would benefit from long-term regular aspirin use for CRC prevention (grade B recommendation: moderate certainty of benefit). […] It further recommended that adults 60 to 69 years who are already taking aspirin should continue unless they develop new concern for gastrointestinal bleeding.
  • #1 Colorectal Cancer Prevention | How to Prevent Colorectal Cancer | American Cancer Society
    https://www.cancer.org/cancer/types/colon-rectal-cancer/causes-risks-prevention/prevention.html
    For some people in their 50s who have a high risk of heart disease, the aspirin may also have the added benefit of reducing the risk of colorectal cancer. […] Some studies have shown that taking estrogen and progesterone after menopause may reduce a womans risk of developing colorectal cancer, but other studies have not.
  • #1 Preventive Treatment for People at High Risk for Colorectal Cancer | NYU Langone Health
    https://nyulangone.org/conditions/colorectal-cancer/treatments/preventive-treatment-for-people-at-high-risk-for-colorectal-cancer
    People who have certain genetic colorectal cancer syndromes and those who have inflammatory bowel disease (IBD) are considered to be at high risk for colorectal cancer. […] For those who have been diagnosed with IBD, our gastroenterologists, who specialize in the diagnosis and treatment of the condition, can provide the most effective treatment options, colonoscopy screening, and monitoring to reduce colorectal cancer risk. […] Individuals who have inflammatory bowel disease (IBD), including Crohns disease and ulcerative colitis, are considered to be at high risk for colorectal cancer, especially if they have had the disease for several years. […] For this reason, people with IBD need to be under the care of a gastroenterologist who specializes in IBD to ensure accurate diagnosis, effective treatment, and careful monitoring.
  • #1 Colorectal Cancer Risk Factors | Hereditary Colorectal Risk Factors | American Cancer Society
    https://www.cancer.org/cancer/types/colon-rectal-cancer/causes-risks-prevention/risk-factors.html
    Many lifestyle-related factors have been linked to colorectal cancer. In fact, more than half of all colorectal cancers are linked to risk factors that can be changed. […] Following a healthy eating pattern that includes plenty of fruits, vegetables, and whole grains, and that limits or avoids red and processed meats and sugary drinks probably lowers risk. […] If you have inflammatory bowel disease (IBD), including either ulcerative colitis or Crohns disease, your risk of colorectal cancer is increased. […] If you have a family history of adenomatous polyps or colorectal cancer, talk with your doctor about the possible need to start screening at a younger age. If you’ve had adenomatous polyps or colorectal cancer, its important to tell your close relatives so that they can pass along that information to their doctors and start screening at the right age. […] Since many of these syndromes are linked to colorectal cancer at a young age and other types of cancer, identifying families with these inherited syndromes is important. It lets doctors recommend specific steps such as screening and other preventive measures when the person is younger.
  • #1 Prevention | Colorectal Cancer Alliance
    https://colorectalcancer.org/screening-prevention/prevention
    A family history of colorectal cancer puts you at an increased risk for the disease. […] If you have a family history, you may need to be screened at age 40, or 10 years before the youngest case in your immediate family, whichever is earlier. […] Timely screening is the #1 way to reduce your risk for colon cancer, but did you know there are a number things you can do right at home? […] Prevent colorectal cancer with lifestyle changes.
  • #1 Reducing your risk for colorectal cancer | Canadian Cancer Society
    https://cancer.ca/en/cancer-information/cancer-types/colorectal/risks/reducing-your-risk
    If you follow the screening guidelines for colorectal cancer, the cancer can be found before you notice symptoms. […] Some drugs may help to protect you from developing colorectal cancer. […] Research shows that people who take NSAIDs have a lower risk of developing colorectal cancer. […] Women who take HRT may have a lower risk of developing colorectal cancer. […] If you are at higher than average risk, you may need to visit your doctor more often to check for colorectal cancer. […] People at high risk for colorectal cancer may have colonoscopies at regular intervals to look for signs of cancer and remove polyps. […] Prophylactic colectomy is surgery to remove the whole colon before colorectal cancer is diagnosed.
  • #1 Screening and Prevention for People with a Family History of Colorectal Cancer | Dana-Farber Cancer Institute
    https://www.dana-farber.org/health-library/screening-prevention-for-people-with-a-family-history-of-colorectal-cancer
    An important way to prevent cancer of the colon or rectum is by getting the appropriate screening tests. Removal of pre-cancerous polyps detected through screening can prevent the development of cancer altogether. […] In people with either one first-degree or two second-degree relatives (for instance, an aunt, uncle or grandparent) with colon cancer or pre-cancerous polyps, the above screening is recommended beginning at age 40 instead of 50, with a colonoscopy as the preferred method. A colonoscopy should be repeated at least every five years if the results are negative. […] Colonoscopy screening should begin at 40 years or 10 years earlier than the earliest case of colon cancer in the family. A colonoscopy should be repeated at least every five years if the results are negative. […] When a hereditary colorectal cancer syndrome is suspected or present in a family, members may begin screening at much younger ages and more frequently. In some cases, screening may begin in childhood or early adulthood and will often involve annual colonoscopy.
  • #1 Preventive Treatment for People at High Risk for Colorectal Cancer | NYU Langone Health
    https://nyulangone.org/conditions/colorectal-cancer/treatments/preventive-treatment-for-people-at-high-risk-for-colorectal-cancer
    Our experts work in partnership with those who are at high risk for colorectal cancer to help make decisions about treatment options and medical and surgical strategies to reduce the risk of cancer. […] Some studies have shown that medications such as aspirin, non-steroidal anti-inflammatory drugs (NSAIDs), and cox-2 inhibitors may reduce the risk of polyps or colorectal cancer in some people at high risk for colorectal cancer, such as those with IBD. […] People with familial adenomatous polyposis or Lynch syndrome may choose to have surgery to remove the entire colona procedure called a total colectomyto help prevent colon cancer.
  • #1
    https://www.who.int/news-room/fact-sheets/detail/colorectal-cancer
    Regular screening for colorectal cancer (secondary prevention) is the best way to catch the disease early. […] Studies have shown that screening can reduce both the incidence and mortality of colorectal cancer through early detection and removal of precancerous growths. […] Stool-based tests are non-invasive screening methods used to detect the presence of colorectal cancer or precancerous polyps in the stool. […] Individuals with a family history of colorectal cancer or certain genetic conditions may benefit from genetic counselling and genetic testing to assess their risk and determine appropriate screening measures.
  • #1 Colorectal cancer prevention: what you need to know – Baylor College of Medicine Blog Network
    https://blogs.bcm.edu/2025/03/12/colorectal-cancer-prevention/
    Colonoscopies remain the gold standard for detecting and removing precancerous polyps before they turn into cancer. […] Most patients tolerate the procedure well, and it can save lives. […] The American Cancer Society recommends that people at average risk of colorectal cancer begin screening at age 45. […] For most people, a colonoscopy every 10 years is sufficient, but those with higher risk factors may need more frequent screenings. […] Colorectal cancer is highly preventable with a proactive approach to health. […] Screening saves lives.
  • #2 Colorectal cancer – Wikipedia
    https://en.wikipedia.org/wiki/Colorectal_cancer
    It has been estimated that about half of colorectal cancer cases are due to lifestyle factors, and about a quarter of all cases are preventable. Increasing surveillance, engaging in physical activity, consuming a diet high in fiber, quitting smoking and limiting alcohol consumption decrease the risk. […] Lifestyle risk factors with strong evidence include lack of exercise, cigarette smoking, alcohol, and obesity. The risk of colon cancer can be reduced by maintaining a normal body weight through a combination of sufficient exercise and eating a healthy diet. […] Current research consistently links eating more red meat and processed meat to a higher risk of the disease. […] The 2014 World Health Organization cancer report noted that it has been hypothesized that dietary fiber might help prevent colorectal cancer, but that most studies at the time had not yet studied the correlation. A 2019 review, however, found evidence of benefit from dietary fiber and whole grains.
  • #2 Colorectal Cancer Prevention and Screening | UCSF Health
    https://www.ucsfhealth.org/education/colorectal-cancer-prevention-and-screening
    Cases of colorectal cancer are on the rise in people under the age of 50. While there is no sure way of preventing colorectal cancer, there are a number of simple measures you can take to lower your risk of developing it. […] Removing polyps is the most effective way to prevent the development of colorectal cancer. […] About 90 percent of colorectal cancers are thought to be preventable. In addition to having regular colorectal cancer screenings, a healthy lifestyle can reduce your risk of colorectal cancer. […] Up to half of all cases of colorectal cancer can be prevented with simple lifestyle modifications such as the following: Eat a well-balanced diet. Limit your consumption of red and processed meats. Eat more fruits, vegetables and whole grains. […] Exercise regularly. Moderate to intense exercise may help reduce your chances of developing the precancerous polyps that lead to colorectal cancer.
  • #2 Colorectal cancer prevention: what you need to know – Baylor College of Medicine Blog Network
    https://blogs.bcm.edu/2025/03/12/colorectal-cancer-prevention/
    Colonoscopies remain the gold standard for detecting and removing precancerous polyps before they turn into cancer. […] Most patients tolerate the procedure well, and it can save lives. […] The American Cancer Society recommends that people at average risk of colorectal cancer begin screening at age 45. […] For most people, a colonoscopy every 10 years is sufficient, but those with higher risk factors may need more frequent screenings. […] Colorectal cancer is highly preventable with a proactive approach to health. […] Screening saves lives.
  • #2 Screening for Colorectal Cancer | Colorectal Cancer | CDC
    https://www.cdc.gov/colorectal-cancer/screening/index.html
    Colorectal cancer almost always develops from precancerous polyps (abnormal growths) in the colon or rectum. Screening tests can find precancerous polyps, so that they can be removed before they turn into cancer. Screening tests can also find colorectal cancer early, when treatment works best. […] Most people should begin screening for colorectal cancer soon after turning 45, then continue getting screened at regular intervals. However, you may need to be tested earlier than 45, or more often than other people, if you have: […] If you think you are at increased risk for colorectal cancer, speak with your doctor about: […] Several screening tests can be used to find polyps or colorectal cancer. […] It is important to know that if your test result is positive or abnormal on some screening tests (stool tests, flexible sigmoidoscopy, and computed tomography colonography), a colonoscopy test is needed to complete the screening process. […] Colonoscopy also is used as a follow-up test if anything unusual is found during one of the other screening tests.
  • #2 Primary Prevention of Colorectal Cancer
    https://pmc.ncbi.nlm.nih.gov/articles/PMC2947820/
    Modifications in diet and lifestyle should substantially reduce the risk of colorectal cancer and could complement screening in reducing colorectal cancer incidence. […] In summary, increasing intake of fruits, vegetables, or fiber is unlikely to prevent a large proportion of colorectal cancers, particularly among a U.S. population, which has a food supply already fortified with folate and other dietary factors that might protect against colorectal neoplasia. […] Limiting intake of processed meat and red meat, especially after high-temperature cooking, and replacing these foods with poultry or fish as alternative protein sources could be a reasonable approach to reducing risk of colorectal cancer. […] There is compelling evidence that avoidance of smoking and heavy alcohol use, prevention of weight gain, and the maintenance of a reasonable level of physical activity can each have a positive influence on risk of colorectal cancer.
  • #2 Dietary Prevention of Colon Cancer | UPMC Physician Resources
    https://www.upmcphysicianresources.com/news/011922-dietary-prevention-colon-cancer
    Colon cancer is the second leading cause of cancer-related deaths worldwide. […] A high-fiber diet is associated with a lower risk of all cancers, a lower risk of cardiovascular and respiratory diseases, and a reduction in all-cause mortality. […] A minimum of 50 grams of fiber a day is needed to promote good health and minimize colon cancer risk. […] The study strongly suggested that the level of dietary fiber consumed can convert the colon from a cancer-promoting environment to a cancer-preventing environment in as little as two weeks. […] High-fiber diets can be used to treat obesity and may provide a novel way to manage type 2 diabetes by promoting intestinal microbiota that produce short-chain fatty acids. […] Colon cancer and other Westernized diseases can be attributed to microbiota-diet interactions, and there is increasing evidence that consuming at least 50 grams of fiber per day may prevent these diseases.
  • #2 Colorectal cancer: prevention – Digestive Cancers Europe
    https://digestivecancers.eu/colorectal-prevention/
    Eat a healthy diet and limit red and processed meats. Try to limit intake of red meat, which includes steaks, burgers and pork, and processed meats such as bacon, sausages and processed sandwich meat. Eating healthy and unprocessed or limited processed foods, including plenty of fruits, vegetables, and whole grains, limiting red and processed meats and sugary drinks, lowers the overall risk of colorectal cancer. […] Colorectal cancer is one of the very few cancers that can be prevented through screening. Indeed, regular screening over the age of 50 is probably the single best way to prevent colorectal cancer. Screening can identify polyps that are not yet cancerous but could become so in the future. It can also detect colorectal cancer in the very early stages, before symptoms have started. And in its early stages, colorectal cancer is highly treatable doctors are often able to cure it completely. […] Do not let that happen to you. If you suspect you have any symptoms, please see your family doctor. And if you receive an invitation to be screened for colorectal cancer, please accept it.
  • #2 Colorectal Cancer Risk Factors | Hereditary Colorectal Risk Factors | American Cancer Society
    https://www.cancer.org/cancer/types/colon-rectal-cancer/causes-risks-prevention/risk-factors.html
    Many lifestyle-related factors have been linked to colorectal cancer. In fact, more than half of all colorectal cancers are linked to risk factors that can be changed. […] Following a healthy eating pattern that includes plenty of fruits, vegetables, and whole grains, and that limits or avoids red and processed meats and sugary drinks probably lowers risk. […] If you have inflammatory bowel disease (IBD), including either ulcerative colitis or Crohns disease, your risk of colorectal cancer is increased. […] If you have a family history of adenomatous polyps or colorectal cancer, talk with your doctor about the possible need to start screening at a younger age. If you’ve had adenomatous polyps or colorectal cancer, its important to tell your close relatives so that they can pass along that information to their doctors and start screening at the right age. […] Since many of these syndromes are linked to colorectal cancer at a young age and other types of cancer, identifying families with these inherited syndromes is important. It lets doctors recommend specific steps such as screening and other preventive measures when the person is younger.
  • #2 Colon cancer – Symptoms and causes – Mayo Clinic
    https://www.mayoclinic.org/diseases-conditions/colon-cancer/symptoms-causes/syc-20353669
    Colon cancer happens when cells in the colon develop changes in their DNA. […] Doctors recommend that people with an average risk of colon cancer consider starting colon cancer screening around age 45. But people with an increased risk should think about starting screening sooner. People with an increased risk include those with a family history of colon cancer. […] Making changes in everyday life can reduce the risk of colon cancer. To lower the risk of colon cancer: Eat a variety of fruits, vegetables and whole grains. Fruits, vegetables and whole grains have vitamins, minerals, fiber and antioxidants, which may help prevent cancer. […] Some medicines can reduce the risk of colon polyps or colon cancer. For instance, some evidence links a reduced risk of polyps and colon cancer to regular use of aspirin or aspirin-like medicines. But it’s not clear what dose and what length of time would be needed to reduce the risk of colon cancer. Taking aspirin daily has some risks, including ulcers and bleeding in the digestive system. […] If you have an increased risk of colon cancer, discuss your risk factors with your health care team to see if preventive medicines are safe for you.
  • #2 Modifiable Risk Factors for Bowel Cancer
    https://www.bowelcanceraustralia.org/bowel-cancer/modifable-risk-factors/
    Diet and lifestyle choices, as well as screening and surveillance, can influence your bowel cancer risk. […] Research indicates up to 32% of bowel cancer cases may be prevented by endoscopic screening alone (flexible sigmoidoscopy / colonoscopy) and, when combined with the 5 healthy lifestyle factors* increased to 61%. […] If you choose to drink alcohol, limit the amount. […] Long-term use (five years or more) of at least 75mg per day of aspirin can decrease the risk of bowel cancer. […] Keep your weight within the healthy range and avoid weight gain in adult life. […] Dairy products and calcium supplements are associated with a decreased risk of bowel cancer. […] Recreational physical activity can reduce colon (not rectal) cancer by 16%. […] Participate in screening appropriate to your personal level of risk. […] If you eat red meat, limit the amount to no more than about three portions per week. […] Quit smoking and avoid exposure to tobacco smoke. […] Eating at least 90 grams of wholegrains a day, such as brown rice or wholemeal bread, can reduce the risk of bowel cancer by 17%.
  • #2 Bowel Cancer Prevention | Direct Endoscopy
    https://directendoscopy.com.au/bowel-cancer-prevention/
    Convincing evidence shows that higher levels of physical activity protect against colon (not rectal) cancer. […] Its recommended to start with a minimum of 30 minutes exercise where the heart rate is elevated, increasing to 60 minutes every day. […] Limiting habits which involve being seated for long periods, e.g. watching television, is also a great way to minimize contributing factors. […] Prevention can be possible through our Colonoscopy procedure, which offers the best chance of early detection and cure. […] Prevention is increasingly important for those who match the following criteria: […] Colonoscopy is currently the most accurate way of detecting and the only means of removing polyps from the bowel. […] If polyps are left untreated, a significant percentage of these will eventually develop into bowel cancer.
  • #2 Prevention Tips for Colorectal Cancer Risk
    https://health.clevelandclinic.org/how-to-prevent-colon-cancer
    The goal is at least 30 minutes of moderate-intensity exercise five days a week. […] There is growing evidence that a sedentary lifestyle contributes to an increased risk of colorectal cancer, potentially through effects on bowel motility, inflammation and metabolic health […] By focusing on eating better and exercising, youll be able to maintain a healthy weight, which is vital for preventing colorectal cancer. […] Excess body fat may contribute to chronic inflammation, insulin resistance and hormonal imbalances all of which can play a role in cancer development […] Keep an eye on your alcohol consumption, which is a general cancer risk factor. […] On top of many other health risks, smoking increases your risk of colon cancer, so take steps to quit right away. […] While about 5% of colorectal cancers are inherited, if a biological family member has colorectal cancer, your risk increases.
  • #2 Reducing your risk for colorectal cancer | Canadian Cancer Society
    https://cancer.ca/en/cancer-information/cancer-types/colorectal/risks/reducing-your-risk
    You may lower your risk of developing colorectal cancer by doing the following. […] Research shows that regular physical activity can lower your risk for colorectal cancer. […] Research also shows that sedentary time, or sitting time, increases your risk for colorectal cancer. […] Research shows that being overweight or obese increases your risk for colorectal cancer. […] Drinking alcohol increases your risk of developing colorectal cancer. […] Smoking tobacco increases the risk of precancerous conditions and cancer of the colon or rectum. […] Diets that are high in red meat or include processed meats increase the risk for colorectal cancer. […] Research shows that eating foods containing dietary fibre lowers the risk of colorectal cancer. […] Research shows that eating dairy products lowers the risk for colorectal cancer.
  • #2
    https://fascrs.org/patients/diseases-and-conditions/a-z/six-steps-to-lowering-your-risk-of-colon-cancer
    Get regular colorectal cancer screenings beginning at age 45.* If you have a personal or family history of colorectal cancer or colorectal polyps, or a personal history of another cancer or inflammatory bowel disease, talk to your doctor about earlier screening. […] Eat plenty of fiber. Eat between 25 to 35 grams of fiber each day. Fruits, vegetables, whole grain bread and cereals, nuts and beans are excellent sources of fiber. […] Eat a low-fat, healthy diet. Diets that include fruits, vegetables, and whole grains have reduced risk of colorectal cancer. Also, limit red meat (beef, pork, lamb) and processed meats (salami, hot dogs) as these have been linked to an increased risk of colorectal cancer. […] Limit alcohol and don’t use tobacco. Alcohol and tobacco are linked to colorectal cancer and other gastrointestinal cancers. If you use tobacco, quit. If you use alcohol, drink only in moderation. The American Cancer Society recommends no more than 2 drinks a day for men and 1 drink a day for women.
  • #2 Colon Cancer Prevention: 6 Tips for Reducing Your Risk
    https://www.healthline.com/health/colorectal-cancer/colon-cancer-prevention
    Regular exercise can help you manage your weight and reduce your risk of colon cancer. […] Due to the nature of colon cancer, screening tests are done before signs and symptoms may develop. […] Colorectal cancer screening via traditional colonoscopy is typically recommended every 10 years starting at age 45. However, your doctor may recommend testing sooner and more often if you’re at higher risk. […] In the United States, about 13 percent of colon cancers are attributed to alcohol consumption, and 12 percent to current or former tobacco use. […] Current smokers are at a 50 percent higher risk of developing colon cancer than those who never smoked. […] Men with obesity have about a 50 percent higher risk of colon cancer than people without obesity, while women with obesity have about a 10 percent increased risk.
  • #2 Seven ways to reduce your risk of bowel cancer – UK Health Security Agency
    https://ukhsa.blog.gov.uk/2019/04/01/seven-ways-to-reduce-your-risk-of-bowel-cancer/
    People who are more physically active have a lower risk of developing bowel cancer. […] Alcohol is linked to seven types of cancer, including bowel cancer. It is estimated that about 6 out of 100 bowel cancers (6%) in the UK are linked to alcohol. […] An estimated 7% of bowel cancer cases in the UK are linked to tobacco smoking, and bowel cancer risk increases with the number of cigarettes smoked per day. […] The NHS Bowel Cancer Screening Programme can detect bowel cancer at an early stage in people with no symptoms, when it is easier to treat and the chance of survival is greater.
  • #2 Primary Prevention of Colorectal Cancer
    https://pmc.ncbi.nlm.nih.gov/articles/PMC2947820/
    Aspirin and COX-2 selective inhibitors reduce the risk of colorectal neoplasia. Presently, their routine use is not recommended for prevention of colorectal cancer in the general population due to concern about their associated toxicities. However, there are specific populations in which the potential benefit associated with their use may outweigh the risks.
  • #2 Prevention Tips – The Mount Sinai Hospital | Mount Sinai – New York
    https://www.mountsinai.org/care/cancer/services/colon/prevention-tips
    The link between smoking and lung cancer is well-known. But lesser known is that fact that smoking can also cause cancers of the digestive system, such as colon and rectal cancer. […] Heavy drinking is associated with numerous health problems, including colon and rectal cancer. […] There is evidence that aspirin and other nonsteroidal anti-inflammatory drugs (NSAIDS), such as naproxen (Aleve®) and ibuprofen (Motrin®, Advil®) may decrease the risk of death from colon and rectal cancers. However, because aspirin can have side effects like bleeding from the bowels, you should consult your doctor before thinking of using aspirin or another NSAID for colon and rectal cancer prevention.
  • #2 Should you take aspirin to prevent colorectal cancer? | UCLA Health
    https://www.uclahealth.org/news/article/should-you-take-aspirin-to-prevent-colorectal-cancer
    Excluding skin cancers, colorectal cancer is the third-leading cause of cancer-related deaths in the United States. Regular colorectal cancer screening is the best way to reduce risk. But for certain people, taking a daily low-dose aspirin should also be on your to-do list. […] The U.S. Preventive Services Task Force (USPSTF) finds that low-dose aspirin can reduce the risk of colorectal cancer by 40% for people who meet specific criteria. […] We know that aspirin reduces the risk of colorectal cancer, but we dont recommend it to the general population yet because the benefits dont outweigh the risks for everyone, Dr. Rezapour says. […] Both the USPSTF and the American College of Gastroenterology (ACG) agree that for a select group of people, the benefits of daily low-dose aspirin use outweigh the risks.
  • #2 Reducing your risk for colorectal cancer | Canadian Cancer Society
    https://cancer.ca/en/cancer-information/cancer-types/colorectal/risks/reducing-your-risk
    If you follow the screening guidelines for colorectal cancer, the cancer can be found before you notice symptoms. […] Some drugs may help to protect you from developing colorectal cancer. […] Research shows that people who take NSAIDs have a lower risk of developing colorectal cancer. […] Women who take HRT may have a lower risk of developing colorectal cancer. […] If you are at higher than average risk, you may need to visit your doctor more often to check for colorectal cancer. […] People at high risk for colorectal cancer may have colonoscopies at regular intervals to look for signs of cancer and remove polyps. […] Prophylactic colectomy is surgery to remove the whole colon before colorectal cancer is diagnosed.
  • #2 Screening and Prevention for People with a Family History of Colorectal Cancer | Dana-Farber Cancer Institute
    https://www.dana-farber.org/health-library/screening-prevention-for-people-with-a-family-history-of-colorectal-cancer
    An important way to prevent cancer of the colon or rectum is by getting the appropriate screening tests. Removal of pre-cancerous polyps detected through screening can prevent the development of cancer altogether. […] In people with either one first-degree or two second-degree relatives (for instance, an aunt, uncle or grandparent) with colon cancer or pre-cancerous polyps, the above screening is recommended beginning at age 40 instead of 50, with a colonoscopy as the preferred method. A colonoscopy should be repeated at least every five years if the results are negative. […] Colonoscopy screening should begin at 40 years or 10 years earlier than the earliest case of colon cancer in the family. A colonoscopy should be repeated at least every five years if the results are negative. […] When a hereditary colorectal cancer syndrome is suspected or present in a family, members may begin screening at much younger ages and more frequently. In some cases, screening may begin in childhood or early adulthood and will often involve annual colonoscopy.
  • #2 Screening and Prevention for People with a Family History of Colorectal Cancer | Dana-Farber Cancer Institute
    https://www.dana-farber.org/health-library/screening-prevention-for-people-with-a-family-history-of-colorectal-cancer
    Even stronger family histories of colon cancer may suggest an inherited colon cancer syndrome. People with a family history of colorectal cancer in several close relatives and across generations, especially if these cancers occur at a young age, may benefit from genetic counseling and genetic testing for the inherited syndromes of colon cancer.
  • #2 Defying the odds: The power of prevention in colorectal cancer | Roswell Park Comprehensive Cancer Center – Buffalo, NY
    https://www.roswellpark.org/cancertalk/202303/defying-odds-power-prevention-colorectal-cancer
    Colorectal cancer is the third most common cancer in the United States, but it is also one of the most preventable with screening. […] By establishing regular screening methods, such as stool-based tests or colonoscopies, doctors can detect the disease at an early stage or even prevent it from occurring altogether by removing polyps. […] Based on this and other similar studies, he emphasizes that having a colonoscopy with the removal of polyps can prevent cancer and save lives. […] The best screening test is the one that gets done, Dr. Nurkin says. […] As a result of this troubling trend, screening guidelines were recently revised to lower the age to start screening to 45. […] By being proactive and informed about your health and family history, you can take steps to prevent and detect colorectal cancer early on, improving your chances of successful treatment and long-term survival. […] Regular screenings and early detection testing, such as colonoscopies or stool-based tests, are essential for catching the disease early.

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