Keto Diet Cuts Liver Fat by 67% in Prediabetes Trial, but Long-Term Use Not Endorsed

A small randomized trial (42 adults with obesity and prediabetes) compared ketogenic, Mediterranean, and low-fat diets. The keto group reduced liver fat by about 67% and improved liver insulin sensitivity more than the other diets, with roughly 50% no longer meeting prediabetes criteria by the end, while weight loss was similar across groups. The study’s short duration and small sample size limit generalizability, so keto may be a short-term option before transitioning to a Mediterranean pattern for long-term health.