• Nutrition researcher Kevin Hall has studied how ultra-processed diets can lead to weight gain. • But he's not categorically banning UPFs at home. • Instead, he aims to find healthy, simple ways to incorporate the right ones into his kids' lunches.

Kevin Hall made a career out of figuring out what's wrong with the way we eat. So, you may be surprised to discover that he isn't one of those "clean" eating types who shun all packaged foods.

In fact, Hall feeds his kids some ultra-processed lunch foods every day. And he doesn't think there's anything wrong with that.

For 21 years, the nutrition researcher studied diet and metabolism at the National Institutes of Health, and he made the groundbreaking discovery that people eat 500 extra calories every day on ultra-processed diets.

"The

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