Where does niacin come from? what's the effect?

What is niacin?

Niacin, also known as niacin, anti-skin disease factor, vitamin B3, and vitamin PP, is a type of water-soluble B vitamin. Niacin is relatively stable in nature and generally has less cooking and processing losses, but it will be lost with water.


What is the role of niacin?

Niacin is an essential vitamin for the human body, and a certain amount of supplement needs to be added to the daily diet. Niacin exists in the form of nicotinamide in the body, forming coenzyme I and coenzyme II, and participates in the synthesis of substances in the body and the regulation of energy metabolism reactions.

Niacin is also one of the components of glucose tolerance factor, which maintains the normal function of insulin. Large doses of niacin can lower blood cholesterol and triglyceride levels and dilate blood vessels.


How much niacin does the body need every day?

The reference intake of niacin in the diet is expressed as niacin equivalent (NE), which is the number of milligrams of niacin in the diet and one-sixtieth the mg of tryptophan, because tryptophan can be Converted to niacin. The recommended daily intake of niacin in Chinese residents is 15mgNE for men and 12mgNE for women.


Where does niacin come from?

Niacin can be directly ingested from food, and is rich in animal liver, kidney, fish, poultry, whole grains and nuts.

Niacin can also be converted in the body and converted from tryptophan with the participation of vitamins B1, B2 and B6. Although the content of niacin in milk and eggs is low, the content of tryptophan is high, which can be converted into niacin in the body. In addition, intestinal flora can also synthesize a small amount of niacin.