Professor Tim Spector makes concerning admission as young people face rising odds of specific cancer

Professor Tim Spector is raising the alarm as Gen Z and Millennials face ever-increasing numbers of colon cancer, with some popular meals reportedly to blame. Generation Z and Millennials, the oldest of which are only 43, are currently facing nearly twice the number of colorectal cancer cases than previous generations despite growing trends emphasizing physical and mental wellbeing.

Although the mortality rate of colorectal cancer has been dropping older adults over recent years, the prognosis hasn’t changed for younger adults. The phenomenon has slightly stumped medical professionals but Professor Tim Spector warned Newsweek it could be down to the widespread misinformation on social media.

The ZOE co-founder explained: “Younger generations want to eat well. However, because 'wellness' has become fashionable, there's a great deal of misinformation on social media. This can make it difficult for people of any age to know how to eat healthily.”

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Ultra-processed foods, which form a large part of diets for many young people, has been proven to increase the risk of several types of cancer including colorectal. The expert highlighted that it’s not just candy, fast food and sodas harbouring these potential cancer-causing products.

Many protein bars, granolas and artificial meats created for vegans and vegetarians also fall into the ultra-processed food category despite their seemingly healthy demeanour. Instead, Prof Tim encouraged a diet rich in fruits, vegetables, whole grains, legumes, nuts and healthy fats found in nuts, seeds, and oily fish to provide the body with a gut healthy enough to defend against the ailments caused by a modern diet.

He added: “When it comes to protecting against colorectal cancer, it's not just about avoiding the bad stuff—it's also about doubling down on what actively helps your body thrive. Fibre does far more than just help with digestion; it regulates bowel movements and reduces the time harmful substances are in contact with the colon.

“That's crucial, because anything that lowers the odds of toxins building up in the gut is going to help reduce cancer risk. Think of fiber as a kind of cleanup crew for your colon."