From the perspective of Complementary Medicine, and specially in Natural medicine, Dietética are something more than in Orthodox Medicine. Diet is more than eating correctly in quantity and quality, is more than having sufficient protein, starch, fat, vitamins, minerals and oligoelements. The discovering of Nutraceuticals opens a different point of view, that of the foods as medicine, respecting the Hypocratic point of view that "Let your food be your medicine, your medicine be your food". Foods are curative, and usually are alive, energy is important in diet, the power of a fruit is difficult to preserv if it is canned. Aspects as Biologically growed foods, fresh nutrients, coloured staples, are very important in the natural concept of Dietética, that withes the narrower concept of nutrients of Conventional Dietética.