Five tips to help prevent colorectal cancer

Dr. David Tsui, MD, PhD, FRCPC, is a medical oncologist at William Osler Health System (Osler). Upon completing his MD/PhD Degree at University of Toronto, Dr. Tsui completed his internal medicine and medical oncology residency at the University of Alberta, and his fellowship at the University of Colorado.

With colorectal cancer cases rising rapidly – especially among younger adults – it’s a good time to focus on prevention. Osler’s Dr. David Tsui shares five practical tips to support overall colon health:

Eat a fibre-rich, balanced diet

Diets high in fibre from fruits, vegetables, whole grains, and legumes can help keep your digestive system healthy and can lower your risk of colorectal cancer. Limit the amount of processed and red meats you eat, as these have been linked to a higher risk when consumed in large amounts. Aim for a colourful plate that incorporates plant-based meals more often.

Stay physically active

Regular physical activity supports healthy digestion, helps maintain a healthy weight, and is associated with a lower risk of colorectal cancer. Aim for at least 150 minutes of moderate exercise each week, such as brisk walking, cycling, or swimming.

Limit alcohol intake and avoid smoking and vaping

Drinking alcohol in excess, smoking and vaping can increase the risk of colorectal cancer, along with many other health conditions. If you drink alcohol, do so in moderation, and consider speaking with a health care provider about supports to quit smoking or vaping.

Be aware of signs and symptoms and speak to your doctor

Changes in bowel habits such as blood in the stool, unexplained weight loss, abdominal pain, or persistent fatigue should not be ignored. While these symptoms can be caused by many conditions, it’s important to speak with your doctor and get them checked early.

Get screened once you are eligible

Regular colorectal cancer screening is your most effective defense as it can identify and remove polyps before they become cancerous. Early detection and treatment of colorectal cancer greatly increase survival rates. Talk to your family doctor or primary health care team about when you should begin screening, especially if you have a family history or other risk factors.