Niacin - vitamin PP. From a chemical point of view, this is nicotine acid and its amide. Niacin is a component of nucleotides in the system (Nad i nadp) participating in glycolysis processes, fat synthesis and tissue oxidation. Niacin deficiency can impair the nutrition of the brain and disturb the transformation of porphyrin. Advanced niacin deficiency occurs in the form of pelagra. This disease was formerly widespread in various regions of the world.
The demand for niacin in adults is about 6,6 mg/1000 kcal, The delivery should not be lower than 13 mg, Even when the energy consumption is below 2000 kcal per day.
Niacin may arise in a system of tryptophan, one of the exogenous amino acids. Equivalent 1 mg niacin is 60 mg of this amino acid.
Potatoes deserve attention from plant products in the supply of tryptophan because of the content of this amino acid, as well as the role they play in nutrition.