This document discusses small animal nutrition and the iterative process of clinical nutrition for dogs and cats. It covers assessing the animal, food, and feeding method and then developing a feeding plan. Key parts of the assessment include signalment, medical history, diagnostics, and physical exam including body condition scoring. The document reviews calculating energy requirements, important nutrients like protein, fat, carbohydrates, minerals and vitamins. It also covers life stage nutrition needs for growth, reproduction/lactation, adults, seniors and the special considerations for large breed dogs.