The vitamin niacin is also known as nicotinic acid, vitamin B3 or vitamin PP (pellagra preventing). By definition, vitamins are substances that cannot be produced by the human body. Niacin is therefore not a vitamin in the classic sense, as it can be ingested through food, but can also be produced by the body itself. Nevertheless, niacin belongs to the group of B vitamins.
Like all other members of the vitamin B family, niacin is involved in many aspects of energy metabolism and the function of the nervous system. Niacin plays a particularly important role in the body's energy supply, as it is involved in protein metabolism as well as fat and carbohydrate metabolism. Niacin is also important for our body's recovery. It is particularly important for the regeneration of muscles, nerves, DNA and skin.

Animal products in particular are rich in vitamin B3. Meat and offal, especially pork and beef liver, are rich in niacin. Vitamin B3 is a robust vitamin that is not sensitive to light or heat.

The recommended daily dose of niacin is around 15 milligrams. Pregnant and breastfeeding women have a higher niacin requirement, as do alcoholics.