An equine diet primarily consists of forage, such as hay and grass, which provides essential fiber for digestion. Horses are herbivores, and their digestive systems are designed to process large amounts of roughage. In addition to forage, grains like oats and barley can be included to provide extra energy, especially for working or performance horses. Water is also a crucial component of an equine diet, as horses need access to fresh, clean water at all times. Supplements, such as vitamins and minerals, may be added to ensure that horses receive balanced nutrition, particularly if their diet lacks certain nutrients.