Eric Berg is the most watched nutrition teacher on YouTube, by a mile. Chiropractor, not a medical doctor. Fifteen million subscribers, thousands of videos, a house style of whiteboard diagrams and “the real reason you are tired.” The product is Healthy Keto plus intermittent fasting: protein, non-starchy vegetables, fat, a compressed eating window, electrolytes so you do not fall over on day three.
People find him because a 12-minute video on insulin or fatty liver is easier than a textbook. The insulin-resistance story is the durable bit. Ultra-processed starch and sugar, sitting, poor sleep. Fasting as a tool, not a personality. That overlaps Fung and Panda without the academic prose. If you only steal one thing, steal the electrolytes and the idea that breakfast is optional if you are not hungry.
Then there is the rest of the catalog. Body-type quizzes. Seed-oil panic. A supplement shop attached to the channel. STAT has used him as a case study in wellness content that outruns the evidence. He is a DC who talks like a metabolic endocrinologist. That gap is the whole problem. Cross-check anything that would change a drug, a diagnosis, or a large check. Use him as a popularizer of carb restriction. Do not use him as your only doctor.