Colon cancer is increasingly being diagnosed in younger adults, and one of the biggest concerns is how quietly it can develop. The disease can build over years – sometimes for close to a decade – without causing noticeable symptoms. By the time warning signs such as changes in bowel habits, bleeding, or abdominal discomfort appear, it may already have progressed to a more advanced stage. That is why prevention and early screening are so important. While not every risk factor is in your control, simple everyday habits can go a long way in lowering your risk and supporting long-term colon health.
Dr Saurabh Sethi, a California-based gastroenterologist and hepatologist trained at AIIMS, Harvard and Stanford Universities, is sharing five simple habits that may significantly help lower the risk of colon cancer. In an Instagram video shared on May 26, the gastroenterologist highlights, “I’ve looked inside thousands of colons. The patients who do these things consistently are the ones I worry about least.”
Colonoscopy at 45
Dr Sethi recommends routine colonoscopy screening from the age of 45 to help detect any abnormalities early. He emphasises that regular screening is important because colorectal disease can develop silently, often without obvious warning signs. By the time symptoms appear, the condition may already have progressed or spread, making early detection through timely screening especially important. He stresses, “Colonoscopy at 45 – not when symptoms appear. Colon cancer grows silently for 10 years. Symptoms mean it’s often no longer early stage.”
Add more fibre
According to Dr Sethi, consuming at least 30 grams of fibre each day may significantly lower the risk of colon cancer. He notes that even increasing your daily fibre intake by just 10 grams has been associated with a measurable reduction in risk, making it a simple but impactful dietary habit for long-term colon health. He highlights, “30 grams of fibre daily. Every 10 grams increase in fibre is linked to a 7 percent lower colorectal cancer risk.”
Cut out processed and red meat
According to the gastroenterologist, the World Health Organization classifies processed meat as a Group 1 carcinogen and red meat as a Group 2A probable carcinogen. He explains that reducing or avoiding both may help lower the risk of colorectal cancer. Dr Sethi states, “Cut processed meat. Limit red meat. Processed meat is WHO Group 1 – confirmed carcinogen. Red meat is Group 2A – probably carcinogenic. Different classifications. Both worth reducing.”
Daily movement
Getting at least 30 minutes of movement each day may help protect against colon cancer. Dr Sethi explains that regular exercise supports healthy gut motility, helping waste move through the colon more efficiently. This means harmful substances spend less time in contact with the colon lining, which may reduce exposure to potential carcinogens and lower risk over time. The gastroenterologist highlights, “30 minutes of movement daily. Exercise accelerates gut transit. Less time waste sits in your colon equals less carcinogen exposure.”
Eliminate alcohol
The gastroenterologist recommends either cutting out alcohol completely or reducing intake as much as possible. He notes that alcohol is considered a direct risk factor for colorectal cancer, and current evidence suggests there is no truly safe level of consumption when it comes to cancer risk. Dr Sethi explains, “Eliminate or dramatically reduce alcohol. Direct colon carcinogen. No safe threshold for cancer risk.”
Note to readers: This article is for informational purposes only and not a substitute for professional medical advice. It is based on user-generated content from social media. HT.com has not independently verified the claims and does not endorse them.
