7 Lifestyle Changes That Can Help Prevent Colorectal Cancer

Originally Published:
March 2, 2017
Updated:
June 11, 2026
Read Time:
2 min
Medically Reviewed by
Array of healthy foods like chia seeds and berries

Colorectal cancer is one of the most common cancers in the United States, but it is also one of the most preventable. While age, family history, and certain medical conditions can increase risk, many lifestyle factors are within your control.

Making healthy choices today can help support colon health and may lower your risk of developing colorectal cancer in the future.

Why Colorectal Cancer Prevention Matters

Colorectal cancer often develops from precancerous growths called polyps that form in the colon or rectum. These growths can develop slowly over many years before becoming cancerous.

Regular screening remains one of the most effective ways to prevent colorectal cancer because polyps can often be found and removed before cancer develops. In addition to screening, healthy lifestyle habits may further reduce risk.

1. Eat More Fruits, Vegetables & Whole Grains

Filling your plate with fiber-rich foods like apples, leafy greens, lentils, and whole grains may cut your colon cancer risk by up to 50%.

These foods also provide:

  • B vitamins (linked to lower colorectal cancer risk)
  • Antioxidants and phytonutrients to support gut health

Tip: Snack on almonds, grab a banana, or build a colorful salad for your next meal.

2. Cut Back on Red & Processed Meats

High consumption of red meat (beef, lamb, pork)—especially when grilled or charred—has been linked to higher colorectal cancer risk.

Try swapping red meat for fish, poultry, or plant-based proteins a few times a week.

Avoid overcooking meat at high temperatures, which can form harmful chemicals.

3. Limit Alcohol

Drinking more than 2 alcoholic drinks a day increases your colon cancer risk.

Cutting back on happy hour can benefit your colon, liver, and overall health.

4. Quit Smoking

Tobacco use isn’t just harmful to your lungs—it’s been linked to higher rates of colon cancer, too.

If you’ve been looking for another reason to quit, this is it. Talk to your doctor for support or cessation programs.

5. Get Your Vitamin D Levels Checked

Low vitamin D levels may be linked to increased colorectal cancer risk.

Ask your doctor for a blood test. A daily supplement of 1,000–2,000 IU may be recommended—especially during winter months.

6. Talk to Your Doctor About Calcium

Getting the right amount of calcium can support bone and colon health.

Some studies suggest calcium supplements may lower colon cancer risk—but don’t overdo it. Always talk to your doctor first.

7. Stay Active

Regular exercise lowers inflammation, boosts immune function, and supports healthy digestion—all protective against colon cancer.

Aim for at least 150 minutes of moderate activity per week (or 75 minutes of vigorous movement).

Whether it’s walking, cycling, dancing, or yoga—find something you enjoy and make it part of your routine.

Don't Forget About Colorectal Cancer Screening

Lifestyle changes are important, but they should not replace recommended colorectal cancer screenings.

Many colorectal cancers can be prevented when precancerous polyps are found and removed early. Adults at average risk are generally advised to begin screening at age 45, although some individuals may need earlier screening based on personal or family history.

Talk with your healthcare provider about the screening schedule that is right for you.

Take the Next Step Toward Better Colon Health

Healthy habits and regular screenings work together to help reduce colorectal cancer risk.

At BASS Medical Group, our gastroenterologists and primary care providers help patients stay proactive about digestive health through colorectal cancer screenings, prevention strategies, and personalized care.

If you're due for a colonoscopy or have questions about colorectal cancer prevention, schedule an appointment with a BASS Medical Group provider today.

Medical Disclaimer
The information provided in this blog is for educational and informational purposes only and is not intended as medical advice, diagnosis, or treatment. BASS Medical Group does not endorse any specific tests, treatments, procedures, or opinions referenced in this content. Individual results may vary. Always consult with your physician or a qualified healthcare provider regarding any medical concerns or before making changes to your health regimen.
The information provided in this article is for educational purposes only and is not intended to replace professional medical advice, diagnosis, or treatment. Always consult your physician or another qualified healthcare provider regarding questions about your health, cancer screening recommendations, or dietary supplements. Never disregard professional medical advice because of information you have read online.
Professional headshot of Negar Salehomoum, a Colon And Rectal Surgeon in Walnut Creek, California.
Negar M. Salehomoum
Colon And Rectal Surgery
Dr. Negar M. Salehomoum is a double board-certified colon and rectal surgeon specializing in laparoscopic and robotic techniques. She treats colorectal cancer, inflammatory bowel disease, anorectal conditions, and pelvic floor disorders. Dr. Salehomoum currently serves as Vice Chair of Surgery at John Muir Health in Concord and is an active member of several colorectal surgical societies and tumor boards.