Our vitamin B3 or nicotinamide is one of the biologically active forms. It is produced in the body from an amino acid (tryptophan) which comes from food proteins. It represents a precursor for two co-factors essential for energy metabolism.
Meat, fish, yeasts and mushrooms, grains and particularly corn
It is essential for energy production.
It belongs to the water-soluble B group vitamins. Present in many foods, vitamin B3 deficiencies are rarely seen except in the case of strict vegan diets, alcoholism or severe digestive diseases.
The daily recommended dose varies from 15mg to 40mg depending on age.