Soy is one of the oldest crops in the world and is originary of the northern region of China. It arrived in the Western world very late. In Austria, soya was already grown before the First World War but it then disappeared until the end of the Second World War. In the pod there are 2-3 soy beans. Its size and shape may vary depending on the variety. Its colour can be green or olive green as well as brown, yellow, black or variegated. Soy has a very characteristic taste and whole soy flour can be sweetish with a slight hazelnut taste. Widely used for the preparation af fat dishes under the form of flour, grains or flakes, it is also used as oil and as a stabilizer -lecithin. Indeed, soy has an exceptionally high level of glutamic acid and lecithin which is particularly important for the nervous system and mental functions. Glutamic acid has instead a special effect on the treatment of local defects. Soy is one of the few sources of protein that are not acidic but basic in nature which translantes in the body with a marked reduction of sugar in urine and blood.