Cancer scientist issues warning about ‘red zone’ diet that directly links to cancer

It's long been established that what we eat has a significant impact on our health and now a cancer scientist has explained why there's one diet we should try our best to stay away from.

Although it hasn't yet been scientifically proven, experts are convinced that the rise in ultra-processed foods on our supermarket shelves is playing a significant part in the growth of certain cancers.

Colorectal cancer is one of the fastest growing cancers and is starting to affect more and more people under the age of 50, with some doctors suggesting that an ultra-processed diet can be even worse for us than smoking.

NHS doctor Chris van Tulleken said on a previous Diary of a CEO podcast that ultra-processed foods (UPFS) have 'overtaken tobacco as the leading cause of early death on planet Earth'.

He said: "There is a decade of evidence now that is extremely clear that it is ultra-processed food that is responsible, not just for pandemic weight gain and obesity, but also for a long list of other health problems, including early death."

And that seems to be the view shared by Thomas Seyfried, PhD, who is one of the world's leading researchers on the metabolic origins of cancer.

UPFs have been linked to numerous health issues (Getty Stock)

The professor of biology at Boston College was the most recent guest on Steven Bartlett's Diary of a CEO podcast and he explained why a 'red zone' diet is one that we should all be looking to steer clear of.

Pointing at a metabolic health chart of green, yellow and orange, he said: "This is what we call the zone of prevention. It's very hard to get cancer or chronic diseases when you're in these zones because you're keeping this organelle (a specialised, sub-cellular structure within a cell that performs a similar function to an organ), quite healthy.

"You don't have to live there consistently. Humans evolved as a scavenger species. We wouldn't gorge ourselves because we knew it wouldn't happen every day. Modern man is feasting every single day. That's why we have all these chronic diseases. The red zone is the zone for risk of chronic diseases and cancer.

He concluded: "We can visit the red zone. We don't want to live in the red zone."

So what do these diets consist of? Well, they can often be high carbohydrate diets, with lots of sugars, while also being coupled with a lack of exercise.

Naturally, this would likely see you gain weight but Dr Seyfried clearly believes that it is also going to significantly increase our chances of developing a chronic illness or cancer.

Scientists have long suggested that we should avoid ultra-processed foods such as fizzy drinks, packaged snacks, reconstituted meats, and mass-produced baked goods, while red meat and bacon are also well-known carcinogens.

He goes on to explain that we should all be aiming to keep our blood glucose levels low, while our ketone levels should be relatively high.

Ketones are chemicals your liver produces when it breaks down fats for energy instead of glucose, and they most commonly appear when the human body is undergoing intense exercise or fasting.