The USDA National Nutrient Database for Standard Reference is the major source of food composition data in the United States. It provides the foundation for most food composition databases in the public and private sectors.. The database is indexed to facilitate easy access to current global news regarding research and breakthroughs in the field of nutrition and food science. Key areas covered include food science and technology, functional foods, nutraceuticals and supplements, physiology and biochemistry of nutrients, public health nutrition, etc.