This report is organized into 15 chapters, each addressing unique aspects of nutrition for dogs and cats or providing summary tables of requirements and feed ingredients. Each chapter examines literature published since the last editions of Nutrient Requirements of Dogs (1985) and Nutrient Requirements of Cats (1986).

As the committee delved into this task, it became apparent that we needed to examine earlier research as well to formalize the boundaries of knowledge for each topic explored in this report. In some instances-for example, digestive physiology and physical activity- the chapters are essentially new additions requiring a thorough review of literature through many decades.

Our assignment was a challenging one. We are pleased to provide what we believe is a comprehensive document that will improve both the understanding of dog and cat nutrition and its practical application in feeding dogs and cats.