Description of vitamin B3 or PP
Vitamin B3, or niacin, is one of the water-soluble (water-soluble) vitamins. The term niacin includes two related compounds: nicotinic acid and nicotinamide, both of which have the same biological activity.
Preventing a disease called: “pellagra”, vitamin B3 has long been called vitamin PP.
It can be ingested directly in the form of niacin present in food or produced by the body from tryptophan, an amino acid (a component of proteins)1.
Roles in the body
In the liver, vitamin B3 is incorporated into the structure of two coenzymes (NAD and NADP), essential for the activity of many enzymes.
In these forms, it participates in the production of energy within the cells, in the manufacture of various lipids and their derivatives: bile salts (essential for proper digestion of fats), steroid hormones (corticoids, estrogen, testosterone …).
It also enables DNA to be repaired in the event of damage.
It intervenes in the functioning of the nervous system.
Vitamin B3 interacts with other vitamins in the B group, particularly B1 and B2.
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