Metabolic & Weight The Mice Ate More and Got Leaner. The Switch Was One Amino Acid, Turned Down.
USC mice on a low-protein, methionine-tuned diet ate as many calories as the junk-food group and still lost fat, while their own bodies pumped out more GLP-1. The scientist behind it also owns the company selling longevity diets.
By Sarah Okonkwo · July 13, 2026