Niacin
Niacin is better known as vitamin B3. It has many different functions but is particularly well known for maintaining healthy mucous membranes and skin. Since skin is our largest organ, an adequate supply of nutrients is particularly important for you and your children and should not be missing from a balanced diet.
What exactly is niacin?
Vitamins are extremely important as they are essential for many bodily functions. However, in most cases your body cannot produce them on its own. The situation is slightly different with niacin. Vitamin B3 generally belongs to the vitamin B complex, which the body can produce itself.
But what is niacin really? Vitamin B3 comes in two forms: as nicotinic acid (vitamin B3) and nicotinamide, an amide of nicotinic acid that the body can convert into niacin. This B vitamin can also come from the amino acid “tryptophan”, which is found in many foods.
Niacin - Effects & tasks
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The body mainly stores niacin in the liver. The vitamin is involved in maintaining the normal function of the nervous system and normal psychological function and supports the maintenance of normal skin and mucous membranes. Niacin also helps to reduce fatigue and supports energy metabolism.
Vitamin B3 daily requirement
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The daily requirement depends on age and gender. The German Society for Nutrition (DGE) gives the following reference values for niacin intake for children and adults:
Age | Equivalent of niacin mg/day - Men | Equivalent of niacin mg/day - Women |
---|---|---|
Between 1 and 4 years | 8 mg | 8 mg |
Between 4 and 7 years | 9 mg | 9 mg |
Between 7 and 10 years | 11 mg | 10 mg |
Between 10 and 13 years | 13 mg | 11 mg |
Between 13 and 15 years | 15 mg | 13 mg |
Between 15 and 19 years | 17 mg | 13 mg |
Between 19 and 25 years | 16 mg | 13 mg |
Between 25 and 51 years | 15 mg | 12 mg |
Between 51 and 65 years | 15 mg | 11 mg |
65 and above | 14 mg | 11 mg |
Pregnant women in 2nd trimester | 14 mg | |
Pregnant women in 3rd trimester | 16 mg | |
Breastfeeding women | 16 mg |
How to prevent niacin deficiency?
If you are careful about eating varied and healthy foods, both a deficiency and excess of niacin is unlikely. In fact, niacin deficiency is unlikely in general since your body can synthesise it itself. However, an unbalanced diet can promote niacin deficiency in otherwise healthy people.
Food with niacin
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Vitamin B3 can be produced independently by the body from the amino acid “tryptophane”. However, to cover your and your children’s daily requirements, you should also take vitamin B3 in your diet. People who eat a balanced diet and therefore lead a relatively healthy life can cover their daily requirements relatively easily.
Compared to other vitamins, niacin is relatively resistant to heat or prolonged storage. However, it is water-soluble, which is why a certain amount is released into the water when vegetables are cooked, for example. Many foods contain niacin. However, your body can process vitamin B3 from animal foods much better than from plant sources. In addition, the concentration of niacin is usually higher in animal foods.
Food | Niacin per 100 g |
---|---|
Chicken liver | 12 mg |
Oyster mushroom | 10 mg |
Tuna | 8,5 mg |
Beef (pure muscle meat) | 7,5 mg |
Cultivated mushrooms | 5,2 mg |
Saithe | 4 mg |
Lentils | 2,5 mg |
Average values according to Souci, Fachmann, Kraut: Food Composition and Nutrition Tables (7th ed.). Munich: C.H. Beck. 2008
More about vitamins & nutrients

Vitamins & minerals
Want to know what all the valuable micronutrients do, what foods have them and how much you need? Find more information here.

B vitamins
The different members of the vitamin B complex perform different tasks – they take care of energy balance, the nervous system and many other processes in the body.
Find out more
Biotin
The many different members of the vitamin B complex with their different properties play an important role for your energy balance, the nervous system and other components of a healthy organism.
Find out more