Soy comes from the soybean. Soy has become an area of controversy in recent years, with some thinking it’s a nutritious addition to the diet, while others think it’s something that should be avoided.
Soybeans have traditionally been a big part of the Asian diet in the form of tofu, natto, miso and tempeh. In the Western diet, soy also plays a big role. However, in this case, soya is more commonly processed into soyabean oil, which is used in many highly processed foods.