Foods high in vitamin B3 niacin are prevalent in animal products such as meat (offal, chicken, veal ...), eggs, milk, but also in fish. Yeast (baker's or beer) to also contain a lot.
Plants generally contain less niacin vitamin B3, but cereals, pulses (lentils, beans, peas ...), pollen, nuts ... however, containing a little of B3.
Niacin also known as Vitamin B3 is involved in the production of hemoglobin (the substance filling the red blood cells) and keratin (the component of hair, nails ...).
Vitamin B3 also plays a role in maintaining the digestive system and nervous system functions, for example a person who regularly consumes foods high in vitamin B3 niacin will be less prone to memory trouble.
It is advisable to ingest 16mg of vitamin B3 per day.