An ultra-processed diet made this doctor sick. Now he's studying why

https://www.npr.org/sections/health-shots/2023/07/24/ [login to see] /an-ultra-processed-diet-made-this-doctor-sick-now-hes-studying-why
Eating processed food is nothing new. Humans have been crushing grains to make bread for thousands of years. But in recent decades, our food supply has shifted, with an increasing number of ultra-processed products, made with fillers, additives, stabilizers and synthetic ingredients that our grandparents wouldn't recognize.

A recent analysis by the Access To Nutrition Initiative, finds about 70% of food products sold in the U.S. are unhealthy — and much of the food can be classified as ultra-processed.

So, are we the frogs in the boiling pot, adjusting to the shift toward ultra-processed foods, without realizing these foods may promote excess consumption, which may harm us?

Amid the global boom in diet-related diseases, including obesity and Type 2 diabetes, Dr. Chris van Tulleken, the author of Ultra-processed People, made himself a test subject for a brief, one-month, experiment.