Doctor who lost 70 pounds on carnivore diet says Americans have been 'misled and misfed' on nutrition

Dr. Ken Berry, a Tennessee physician, claims he lost 70 pounds and reversed prediabetes by adopting a carnivore diet, citing growing interest in high-protein diets among Americans. A 2025 survey showed 'good source of protein' became the top criterion for healthy food, with 70% of Americans prioritizing protein intake. Nutrition experts debate the long-term health impacts of carnivore diets, which exclude plant-based foods.