India, Dec. 16 -- Vitamin D is often touted as a protective nutrient against everything from weak bones to chronic disease - and colon cancer is frequently added to that list. But does popping supplements actually lower your risk, or is the science more nuanced than social media makes it seem? Before loading up on vitamin D, it's worth understanding who truly benefits, when it helps, and when more isn't necessarily better.

Dr Joseph Salhab, a gastroenterologist and health content creator from Florida, specialising in digestion, liver, pancreas and nutrition, is breaking down the link between vitamin D and the risk of colon cancer. In an Instagram video posted on December 16, the gastroenterologist outlines whether maintaining optimal vit...