Food therapy is one of the 5 branches of Chinese medicine. Food is the oldest form of medicine, and what we put into our bodies, inevitably, affects our overall health. Food therapy categorizes foods according to their energetic properties, such as the temperature effect they have on the body (warming, cooling, etc) and their taste (bitter, sour, etc). Based on these principles, foods can then be prescribed to enhance health and treat illness. This dietary approach can also be used to prevent disease in otherwise healthy pets.