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Nicotinic acid, [a] or niacin, [b] is an organic compound and a vitamer of vitamin B 3, an essential human nutrient. [ 4 ] [ 5 ] It is produced by plants and animals from the amino acid tryptophan . [ 6 ]
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 ...
Vitamin B3 (niacin): ... Doctors can test the levels of B vitamins in your body, the experts note, and this may be recommended if you fall into any of these categories. ... It's generally safe to ...
Tolerable upper intake levels (UL), to caution against excessive intake of nutrients (like vitamin A and selenium) that can be harmful in large amounts. This is the highest level of sustained daily nutrient consumption that is considered to be safe for, and cause no side effects in, 97.5% of healthy individuals in each life stage and sex group.
Niacin may also support the health of mitochondria, the energy producers in cells, which may help prevent crystal buildup in the kidneys. There are a few important limits to consider in the study.
18 milligrams of niacin (112% of daily value) 0.9 milligrams of vitamin B-6 (53% of daily value) Tuna is high in protein, low in calorie, and packed with nutrients.
Normal amounts are safe for use during pregnancy. [9] Nicotinamide is in the vitamin B family of medications, specifically the vitamin B 3 complex. [10] [11] It is an amide of nicotinic acid. [7] Foods that contain nicotinamide include yeast, meat, milk, and green vegetables. [12] Nicotinamide was discovered between 1935 and 1937.
The US Recommended Dietary Allowance for niacin for adult women is 14 mg/day and for adult men 16 mg/day. Niacin is available as a prescription product, either immediate release (500 mg tablets; prescribed up to 3,000 mg/day) or extended release (500 and 1,000 mg tablets; prescribed up to 2,000 mg/day).