que significa niacin 14
Vitamin B3, niacin, Nicotinic Acid, or vitamin PP, with chemical formula C6H5NO2 is a water-soluble vitamin, i.e. water soluble. It acts on the cell as a prosthetic group of coenzymes or precursor metabolism of them. It is absorbed by passive diffusion, not stored and surpluses are eliminated in the urine. Derivatives, NAD, and NADPH, NADH and NADP, are essential in the energy metabolism of the cell and in the repair of DNA.
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