Dr. Paul Saladino argues that eating nose-to-tail animal foods provides all essential nutrients, while plants contain defense chemicals that may harm health. He questions the assumed benefits of polyphenols, fiber, and plant-based diets, highlighting that early humans were likely high-level carnivores. Organ meats are nutrient-dense and affordable. He advocates for fat-based metabolism, moderate protein intake, and challenges common views on plant compounds and supplements.