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Vitamine B3

Constituents

Vitamine B3 = nicotinic acid, niacine, vitamine PP

is a derivative of pyridine

Provenience

- animal: chicken meat, beef, various fish - vegetable: yeast, peanuts

Action

- is transformed in the body into nicotinamide (NAA) which is incorporated in nicotinamide adenine dinucleotide (NAD+) intervening in essential stages of vital metabolism by acting as dehydrogenating agent. - lowers the concentration of cholesterol in the blood - slightly reduces the risk of myocardium - prevents progression of atherosclerosis

Estimated average needs

adult: 15 mg / d child 2-15 mg / d depending on age

Deficiency

- Pellagra: dermatosis with hyperpigmentation of the skin, diarrhea and dementia at an advanced stage.