The question may still arise, “Isn’t fat necessary for normal health and nutrition?” As discussed previously, the need for fat in humans has never been established, although certain essential fatty acids contained in some vegetable oils are helpful for keeping blood fats low. To some people, fat are necessary. For example, the Hottentots, South African tribes, related to the Australian bushmen aborigines, are unique amongst humans in that their women have enormously developed behinds, due to extraordinary deposits of fat!