Systems of Nourishment: Paperback, 380 Pages, English, Luke Comer, Independently Published, 20 April 2026

Most diet books tell you what to eat.Systems of Nourishment teaches you how to understand food.Written for independent, thoughtful, and motivated readers, this book approaches diet through the systems that actually determine human nourishment: physiology, evolution, metabolism, nutrient quality, food processing, and biological response.Rather than asking readers to follow another trend, rule, guru, or dietary ideology, Luke Comer examines what happens after food enters the body. How does the body use nutrients? Why do different cultures thrive on different foods? What did human beings evolve to eat? Are modern dietary recommendations aligned with human physiology? And how did modern food become so disconnected from the biological needs it is supposed to serve?Systems of Nourishment is not another diet plan. It is a framework for understanding diet itself.Through a systems-based lens, Comer explores protein, fats, carbohydrates, micronutrients, food quality, nutrient density, modern chronic disease, and the evolutionary relationship between humans and food. The result is a clear, rigorous, and practical explanation of nourishment for readers who want to make their own decisions rather than outsource their diet to trends or authorities.If you want to stop guessing, stop blindly following, and start understanding what food does in the body, Systems of Nourishment offers a deeper way to think about nutrition.