For the well-being of the whole body, it is advisable to eat a variety of foods, drink plenty of water, and use salt in moderation. A varied diet is important. A guide to the optimal composition of one’s daily diet is provided by the so-called “food pyramid”. This pyramid is divided into six sections, each containing one food group. Sections at the base of the pyramid represent foods that should take up a large part of the diet (these include cereals – gluten free, of course – and potatoes), while those at the apex (namely fats) should be consumed in small quantities.