Doctor ate ultra processed food for a month and his brain changed

Doctor Chris van Tulleken gained 6.5kg of body weight and 3kg of body fat, felt sluggish and "10 years older". PHOTO: BBC STUDIOS
New: Gift this subscriber-only story to your friends and family

SINGAPORE - You know that eating a diet of junk food makes kids gain weight. But what happens to their brains?

British doctor Chris van Tulleken, 42, made himself a guinea pig in a bid to find out. The results of his experiment, chronicled in the new BBC Earth documentary, What Are We Feeding Our Kids?, show worrying changes to his brain that did not go away even after he stopped the diet.

Already a subscriber? 

Read the full story and more at $9.90/month

Get exclusive reports and insights with more than 500 subscriber-only articles every month

Unlock these benefits

  • All subscriber-only content on ST app and

  • Easy access any time via ST app on 1 mobile device

  • E-paper with 2-week archive so you won't miss out on content that matters to you

Join ST's Telegram channel and get the latest breaking news delivered to you.