This book presents historical data on the availability of nutrients in the U.S. food supply. The data and trends presented in this book are invaluable for monitoring the potential of the food supply to meet nutritional needs; for examining relationships between food supplies, diet and health; and for examining the dietary trends of Americans. Additionally, food supply nutrient estimates reflect Federal enrichment and fortification standards and technological advances in the food industry and contribute to the Federal dietary guidance system. As such, this data is of interest to agricultural policymakers, economists, nutrition researchers, and nutrition and public health educators. Data are provided for food energy and energy-yielding nutrients.