Niacin (Vitamin B3) (Vitamins)
Niacin, also known as vitamin B3, is a water-soluble vitamin that plays an important role in several vital functions in the body. It belongs to the B vitamin group, and has two main forms: niacinamide and nicotinic acid.
It contributes to the metabolism of carbohydrates and fats, helping to convert food into energy.
It can help lower levels of bad cholesterol (LDL) and increase levels of good cholesterol (HDL).
It is considered useful in improving the appearance of the skin and may be used in some skin care products.
A deficiency of niacin can lead to a condition known as “pellagra,” which is characterized by symptoms such as dermatitis, diarrhea, and mental disturbances. On the other hand, taking large amounts of niacin (such as supplements) may lead to side effects such as skin redness and itching.
The Dietary Guidelines recommend a daily intake of 14 to 16 mg for adults. Niacin can also be obtained in the body from amino acids such as tryptophan.
