The presumption in Ayurveda is that, with the right diet, which is also constitution conform, as well as the appropriate life style, many diseases can be avoided. This means that diet plays a very important role in Ayurveda. What makes Ayurveda so very special is the assumption that the various constitutions are determined at birth. Each constitution type should nourish themselves according to their essence. This means that not all foods are agreeable for everyone.