The liver is a vital organ responsible for metabolism, detoxification, nutrient storage, bile production, and hundreds of biochemical processes essential to life. Eating liver provides exceptional nutrition—rich in B12, vitamin A, iron, B vitamins, CoQ10, and complete protein—supporting energy, fertility, immunity, and blood health. As one of nature’s most nutrient-dense foods, liver has long been valued in traditional and therapeutic diets.

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.