title: Roles of protein, fat, calories in animal diets explored.
mesh_terms: D000824:Animal Nutritional Physiological Phenomena; D000818:Animals; D004040:Dietary Carbohydrates; D004041:Dietary Fats; D004044:Dietary Proteins
chemical_list: D004040:Dietary Carbohydrates; D004041:Dietary Fats; D004044:Dietary Proteins