Niacin: Difference between revisions
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'''Niacin''' is a [[vitamin]]. It is also known by the name '''nicotinic acid'''. It is '''Vitamin B<sub>3</sub>'''. It can be [[solubility|dissolved]] in [[water]]. It plays a very important role in the [[metabolism]] of living [[cell]]s.<ref> |
'''Niacin''' is a [[vitamin]]. It is also known by the name '''nicotinic acid'''. It is '''Vitamin B<sub>3</sub>'''. It can be [[solubility|dissolved]] in [[water]]. It plays a very important role in the [[metabolism]] of living [[cell]]s.<ref>{{Cite web |url=http://www.feinberg.northwestern.edu/nutrition/factsheets/vitamin-b3.html |title=Northwestern University Nutrition |access-date=2007-07-28 |archive-date=2010-01-11 |archive-url=https://web.archive.org/web/20100111040613/http://www.feinberg.northwestern.edu/nutrition/factsheets/vitamin-b3.html |url-status=dead }}</ref> |
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[[ |
[[File:nicotinamide structure.svg|thumb|80px|right|Chemical structure of nicotinamide.]] |
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Other functions of niacin include removing [[toxin|toxic]] chemicals from the body,<ref name=UMM/> and helping with the production of [[steroid]] [[hormone]]s made by the [[adrenal gland]]. These hormones include |
Other functions of niacin include removing [[toxin|toxic]] chemicals from the body,<ref name=UMM/> and helping with the production of [[steroid]] [[hormone]]s made by the [[adrenal gland]]. These hormones include sex hormones and stress-related ones. |
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==History== |
== History == |
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Niacin was first discovered from the [[oxidation]] of [[nicotine]] to form nicotinic acid. |
Niacin was first discovered from the [[oxidation]] of [[nicotine]] to form nicotinic acid. When the properties of nicotinic acid were discovered, it was thought prudent to choose a name to dissociate it from nicotine, in order to avoid the perception that vitamins or niacin-rich food contain nicotine. The resulting name 'niacin' was made from '''ni'''cotinic '''ac'''id + vitam'''in'''. |
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Niacin is also referred to as Vitamin B<sub>3</sub> because it was the third of the [[B vitamins]] to be discovered. It has historically been referred to as "vitamin PP". That name was derived from the term "pellagra-preventing factor", because the disease [[pellagra]] is due to a deficiency of niacin in the diet. |
Niacin is also referred to as Vitamin B<sub>3</sub> because it was the third of the [[B vitamins]] to be discovered. It has historically been referred to as "vitamin PP". That name was derived from the term "pellagra-preventing factor", because the disease [[pellagra]] is due to a deficiency of niacin in the diet. |
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==How much Niacin is needed== |
== How much Niacin is needed == |
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The recommended daily allowance of niacin is |
The recommended daily allowance of niacin is 2–12 mg a day for children, 14 mg a day for women, 16 mg a day for men, and 18 mg a day for pregnant or breast-feeding women.<ref>{{pauling|id=vitamins/niacin|title=Niacin|author=Jane Higdon}}</ref> |
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Severe deficiency of niacin in the diet causes the disease [[pellagra]]. A mild deficiency will slow down the [[metabolism]], causing decreased tolerance to cold. |
Severe deficiency of niacin in the diet causes the disease [[pellagra]]. A mild deficiency will slow down the [[metabolism]], causing decreased tolerance to cold. |
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Dietary niacin deficiency tends to occur only in areas where people eat [[maize|corn]] (maize), the only grain low in niacin, as a [[staple food]], ''and'' that |
Dietary niacin deficiency tends to occur only in areas where people eat [[maize|corn]] (maize), the only grain low in niacin, as a [[staple food]], ''and'' that do not use [[lime]] during meal/flour production. [[Alkali]] lime releases the [[tryptophan]] from the corn in a process called [[nixtamalization]] so that it can be absorbed in the intestine, and converted to niacin.<ref name=UMM>[http://www.umm.edu/altmed/articles/vitamin-b3-000335.htm Vitamin B3] [[University of Maryland, College Park|University of Maryland]] Medical Center.</ref> |
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== Foods containing Niacin == |
== Foods containing Niacin == |
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* [[leaf vegetable]]s |
* [[leaf vegetable]]s |
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* [[broccoli]] |
* [[broccoli]] |
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* [[tomato]]es |
* [[tomato]]es |
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* [[carrot]]s |
* [[carrot]]s |
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* [[date palm| |
* [[date palm|dates]] |
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* [[sweet potato]]es |
* [[sweet potato]]es |
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* [[asparagus]] |
* [[asparagus]] |
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* [[avocado]]s |
* [[avocado]]s |
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| width="25%" | |
| width="25%" | |
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* [[nut (fruit)| |
* [[nut (fruit)|nuts]] |
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* [[whole grain]] products |
* [[whole grain]] products |
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* [[legume]]s |
* [[legume]]s |
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==References== |
== References == |
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<references /> |
<references /> |
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{{Vitamins}} |
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{{Lipid modifying agents}} |
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[[ar:فيتامين بي3]] |
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[[Category:Organonitrogen compounds]] |
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[[bs:Vitamin B3]] |
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[[bg:Витамин PP]] |
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[[cs:Niacin]] |
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[[cy:Niacin]] |
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[[da:Niacin]] |
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[[de:Nicotinsäure]] |
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[[et:Niatsiin]] |
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[[en:Niacin]] |
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[[es:Vitamina B3]] |
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[[fa:ویتامین ب۳]] |
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[[fr:Vitamine B3]] |
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[[gl:Vitamina B3]] |
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[[ko:니코틴산]] |
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[[hr:Vitamin B3]] |
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[[it:Niacina]] |
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[[he:ויטמין B3]] |
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[[ka:ნიკოტინმჟავა]] |
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[[lb:Niacin]] |
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[[lt:Niacinas]] |
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[[hu:Niacin]] |
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[[nl:Nicotinezuur]] |
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[[ja:ナイアシン]] |
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[[no:Niacin]] |
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[[oc:Vitamina B3]] |
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[[pl:Witamina PP]] |
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[[pt:Niacina]] |
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[[ro:Niacină]] |
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[[ru:Никотиновая кислота]] |
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[[sk:Niacín]] |
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[[sr:Витамин Б3]] |
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[[sh:Vitamin B3]] |
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[[fi:Niasiini]] |
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[[sv:Niacin]] |
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[[th:วิตามินบี 3]] |
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[[tr:Niyasin]] |
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[[uk:Ніацин]] |
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[[zh:烟酸]] |
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Latest revision as of 08:57, 29 September 2024
Niacin is a vitamin. It is also known by the name nicotinic acid. It is Vitamin B3. It can be dissolved in water. It plays a very important role in the metabolism of living cells.[1]
Other functions of niacin include removing toxic chemicals from the body,[2] and helping with the production of steroid hormones made by the adrenal gland. These hormones include sex hormones and stress-related ones.
History
[change | change source]Niacin was first discovered from the oxidation of nicotine to form nicotinic acid. When the properties of nicotinic acid were discovered, it was thought prudent to choose a name to dissociate it from nicotine, in order to avoid the perception that vitamins or niacin-rich food contain nicotine. The resulting name 'niacin' was made from nicotinic acid + vitamin.
Niacin is also referred to as Vitamin B3 because it was the third of the B vitamins to be discovered. It has historically been referred to as "vitamin PP". That name was derived from the term "pellagra-preventing factor", because the disease pellagra is due to a deficiency of niacin in the diet.
How much Niacin is needed
[change | change source]The recommended daily allowance of niacin is 2–12 mg a day for children, 14 mg a day for women, 16 mg a day for men, and 18 mg a day for pregnant or breast-feeding women.[3]
Severe deficiency of niacin in the diet causes the disease pellagra. A mild deficiency will slow down the metabolism, causing decreased tolerance to cold.
Dietary niacin deficiency tends to occur only in areas where people eat corn (maize), the only grain low in niacin, as a staple food, and that do not use lime during meal/flour production. Alkali lime releases the tryptophan from the corn in a process called nixtamalization so that it can be absorbed in the intestine, and converted to niacin.[2]
Foods containing Niacin
[change | change source]| Animal products: | Fruits and vegetables: | Seeds: | Fungi: |
|---|---|---|---|
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References
[change | change source]- ↑ "Northwestern University Nutrition". Archived from the original on 2010-01-11. Retrieved 2007-07-28.
- ↑ 2.0 2.1 Vitamin B3 University of Maryland Medical Center.
- ↑ Jane Higdon, "Niacin", Micronutrient Information Center, Linus Pauling Institute
