An<unk>  is a diet that proposes the ingestion, or in more severe cases use of a gastric feeding tube or intravenous feeding, of liquid nutrients in an easily assimilated form. It is usually composed of amino acids, fats, sugars, vitamins, and minerals. This diet, however, lacks whole or partial protein due to its ability to cause an allergic reaction in some people.
Elemental diet
Low-protein diet
High-protein diet
Plant-based diet
Very-low-calorie diet
Alkaline diet
Feingold diet
Low-FODMAP diet