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Nicotinamide (INN, BAN UK [2]) or niacinamide (USAN US) is a form of vitamin B 3 found in food and used as a dietary supplement and medication. [3] [4] [5] As a supplement, it is used orally (swallowed by mouth) to prevent and treat pellagra (niacin deficiency). [4]
Example of a label showing the amount of niacin (Vitamin B3), and specifying to be niacinamide in the ingredient section.. As flour fortification started adding niacin in the US, the United States Government adopted the terms niacin (a shortened form of "nicotinic acid vitamin") and niacinamide in 1942 as alternate names for nicotinic acid and nicotinamide, respectively, and encouraged their ...
The members of the NAD+ precursor family include tryptophan (Trp), nicotinic acid (NA), nicotinamide (NAM), nicotinamide ribose (NR), nicotinamide mononucleotide (NMN), reduced nicotinamide ribose (NRH) [4] and reduced nicotinamide mononucleotide (NMNH) [5] of these, the majority are logically vitamin B substances or their congeners [6] [7] Based on the bioavailability of its precursors, there ...
The formula contains niacinamide, a vitamin B3 derivative, which helps with skin redness and discoloration, and licorice root extract, which helps ease signs of pigmentation.” —Dr. Geria Shop ...
Dietary supplements containing all eight are referred to as a vitamin B complex. Individual B vitamins are referred to by B-number or by chemical name, such as B 1 for thiamine , B 2 for riboflavin , and B 3 for niacin , [ 1 ] [ 2 ] while some are more commonly recognized by name than by number, such as pantothenic acid (B 5 ), biotin (B 7 ...
Pellagra is a disease caused by a lack of the vitamin niacin (vitamin B 3). [2] Symptoms include inflamed skin, diarrhea, dementia, and sores in the mouth. [1] Areas of the skin exposed to friction and radiation are typically affected first. [1] Over time affected skin may become darker, stiffen, peel, or bleed. [1] [3]
Vitamin intake recommendations made by several countries are that intakes of 14–18 mg/day are sufficient to meet the needs of healthy adults. [6] [21] [22] Nicotinic acid and nicotinamide are both used for prevention and treatment of pellagra, a disease caused by lack of the vitamin. [23] [20]
Nicotinamide riboside (NR, SR647) is a pyridine-nucleoside and a form of vitamin B 3. It functions as a precursor to nicotinamide adenine dinucleotide , or NAD+ , [ 2 ] through a two-step and a three-step pathway.
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