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Vitamin has been listed as one of the Natural sciences good articles under the good article criteria. If you can improve it further, please do so. If it no longer meets these criteria, you can reassess it.

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Date	Process	Result
October 16, 2006	Good article nominee	Listed
October 7, 2009	Good article reassessment	Kept

Current status: Good article

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Vitamin[edit]

vitamin is an organic molecule (or a set of molecules closely related chemically, i.e. vitamers) that is an essential micronutrient that an organism needs in small quantities for the proper functioning of its metabolism. Essential nutrients cannot be synthesized in the organism, either at all or not in sufficient quantities, and therefore must be obtained through the diet. Vitamin C can be synthesized by some species but not by others; it is not a vitamin in the first instance but is in the second. The term vitamin does not include the three other groups of essential nutrients: minerals, essential fatty acids, and essential amino acids.[2] Most vitamins are not single molecules, but groups of related molecules called vitamers. For example, there are eight vitamers of vitamin E: four tocopherols and four tocotrienols. Some sources list fourteen vitamins, by including choline,[3] but major health organizations list thirteen: vitamin A (as all-trans-retinol, all-trans-retinyl-esters, as well as all-trans-beta-carotene and other provitamin A carotenoids), vitamin B1 (thiamine), vitamin B2 (riboflavin), vitamin B3 (niacin), vitamin B5 (pantothenic acid), vitamin B6 (pyridoxine), vitamin B7 (biotin), vitamin B9 (folic acid or folate), vitamin B12 (cobalamins), vitamin C (ascorbic acid), vitamin D (calciferols), vitamin E (tocopherols and tocotrienols), and vitamin K (phylloquinone and menaquinones).[4][5][6] 180.94.69.174 (talk) 11:24, 25 July 2022 (UTC)[reply]

Does this mean you want to change the article? All you have done here is copy the lead paragraph. David notMD (talk) 12:05, 25 July 2022 (UTC)[reply]

In the beginning part, he changed the "are" to "is" and maybe they changed something else but I didn't read the whole text so I don't know Someone346 (talk) 13:53, 8 April 2023 (UTC)[reply]

Ok I read a bit more and he changed more than that Someone346 (talk) 13:56, 8 April 2023 (UTC)[reply]

Someone346 The IP editor posted the above in July 2022 and has not made any edits since then. Are you thinkig of contributing to the Vitamin article? It is rated a Good Article and semi-protected, meaning that you cannot edit it until your account is more than four days old and you have made more than ten edits. David notMD (talk) 01:21, 9 April 2023 (UTC)[reply]

Yeah, I'd love to contribute, but I can't for the reason you just said, my account's somewhat new. Someone346 (talk) 13:11, 19 April 2023 (UTC)[reply]

Semi-protected edit request on 25 April 2023[edit]

This edit request has been answered. Set the |answered= or |ans= parameter to no to reactivate your request.

The "Food sources" of Vitamin D2 and D3 has been swapped: Change source of D2 to "Fungi" Change source of D3 to "Fish, meat, offal, egg and dairy". Microbial Architect (talk) 07:44, 25 April 2023 (UTC)[reply]

Done. Next time, WP:DOIT. Zefr (talk) 15:54, 25 April 2023 (UTC)[reply]

Heat Exposure of Niacin must be yes at the table.[edit]

Heat Exposure of Niacin must be yes at the table Vitamin#Effects_of_cooking. Voproshatel (talk) 09:17, 29 September 2023 (UTC)[reply]

Elimination half-life of niacin and pantothenic acid is <2 hours[edit]

The daily norm of niacin and pantothenic acid does not exist, because their elimination half-life is <2 hours. Therefore only the hourly norm may be for niacin and pantothenic acid. Voproshatel (talk) 10:01, 29 September 2023 (UTC)[reply]

Information in the article can be changed or added if reliable source references are added at the same time. Medical/health topics have a high standard for references. See WP:MEDRS. David notMD (talk) 10:34, 29 September 2023 (UTC)[reply]