Talk:B vitamins/Archive 1

Archive 1

Microwaves

I was discussing vitamins with my roomie, who said that their chiropractor/physician had information saying that b-vitamins were eliminated when you microwave food. If true, that should go in this article. I'm not sure where I'd look that up, however.
~ender 2005-10-25 11:52:MST

Note that some vitamins generally decompose when heated. This investigation shows that the B vitamins are nowhere near "eliminated" by microwave ovens. Don't believe everything a doctor tells you, especially if he is a follower of some "alternative" practices. Icek 07:20, 16 July 2007 (UTC)

Folate (Vitamin B9) is very sensitive to heat/boiling; much is lost by overcooking. This is true about all forms of cooking (including microwave).Drei00 20:55, 2 December 2007 (UTC)

Contradiction

The article ergadenylic acid presents vitamin B8 as a true vitamin, which contradicts the "B vitamins" article. Which article is correct?!!!!! --Transhumanist 07:54, 16 June 2006 (UTC)

There's no contradiction there. B8 is a specific molecule, "vitamin B" isn't. KonradG 14:10, 6 September 2006 (UTC)

Vitamin H and/or I

The sentence "Vitamin B7 (Vitamin I) – more commonly called alcohol soluble Rice bran anti digestive disterbance factor in Pigions; Inositol, Nicotinic acid, & Biotin are possibles" needs cleaning up. (I would do it if I knew what the author had in mind; "pigion"? a "possible"?) One site I have seen on the subject seems to say Vitamin I was an alternate name for Vitamin B₇/biotin, which isn't so helpful since it doesn't say whether that makes Vitamin H = Vitamin I. I'm also intrigued by "Vitamin B_w – a type of Biotin but not d-Biotin". Boris B 00:22, 26 July 2006 (UTC)

This page has obviously been vandalized. There is no such thing as Vitamin I, though there is a sports team in Ithaca that uses that name. I wish I knew more about the subject to fix it, but I don't. The completely absurd entry for B-7 (Biotin) has survived numerous revisions.

I don't know enough about the subject either. I restored the B7 entry to what seemed to me what the second-last revision was trying to say. It looks to me that likely that paragraph is out-of-date; likely in the past they didn't know which substance was vitamin B7 and later they found out it was biotin, but I don't actually know that, I'm just guessing based on the information that's in the article. --Coppertwig 13:53, 3 December 2006 (UTC)

Poisoning

What about something on B-vitamin overdosing/poisoning? Anyone know anything about it? The Jade Knight 04:13, 28 October 2006 (UTC)

you may better refer to separate vitamins for details, since vitamin B is a collective terms for many kind of vitamins, and they have very different symptoms in either undernorishment or overdosing. Meaningless 03:47, 31 October 2006 (UTC)

B vitamins are water soluble, any excess is eliminated by the kidneys.... so no toxicity issues Jan 05/07 (KBS)

This is not quite true. Although B vitamins are water soluble, some are stored quite well (B6 and 12 comes to mind) and cause symptoms if too much are taken. Vitamin B3/niacin has a tolerable upper intake level of (UL) of 35mg/day from fortified food or supplements. Vitamin B6/pyridoxine has a UL of 100mg/day because it can cause neurological problems at high doses. Folic acid has an UL of 1mg from fortified foods and supplements because it can mask B12 deficiency, which can lead to permanent nerve damage. I think if we have a section on health benefits we need to have a section on toxicity or else someone can look at this article and think that taking potentially harmful doses of some B vitamins provides health benefits. Jasonbholden (talk) 17:03, 16 April 2008 (UTC) I just added a table on the toxicity of b vitamins. It is not thurough, but I will edit it in the next few weeks to polish it and give it some depth.Jasonbholden (talk) 00:15, 11 May 2009 (UTC)

I also want to report that this edit:

11:13, 8 May 2007 Slashme (Talk | contribs) m (10,427 bytes) (→Related nutrients - Re-word intro section and note on amygdalin.)

states that vitamin b₁₇ is toxic, which is not true at least about laetril, but I also think it's not true about vitamin b₁₇ either. Medical evidence shows that one can take rather high doses of it without harmful effects. Although it does contain cyanide and an other toxic compound, these are not "free" thus they do not harm the body until released.

I saw an edit this June on the B vitamin toxicity table saying that the tolerable upper intake level for riboflavin is 1.8 mg because it can create free radicals. This is not correct. There is no tolerable upper intake level for riboflavin. The institute of medicine was aware of the studies on riboflavin and free radicals when setting the tolerable upper intake level, but these studies were in vitro (test-tube studies). There were no studies in humans or animals to suggest any adverse effects from any oral dose of riboflavin at that time. not sure how this person got 1.8 mg because he did not site his/her source. Thus, I eliminated the edit, provided additional information on the studies mentioned by this person and sited my source. Jasonbholden (talk) 21:27, 8 August 2010 (UTC)

B7 and B9

I can't find any reference to Biotin being called B-7 or Folate being called B-9 in my Nutritional Biochemistry book, so I assume these are either very obscure names, or just incorrect. Does anyone have a citation for this? --Slashme 07:05, 1 February 2007 (UTC)

A Google Scholar search yields this and this. Icek 07:47, 16 July 2007 (UTC)

Choline

This article puts choline on a list of non-essential nutrients, but choline says that it is essential. Which is correct? -- Beland 17:50, 17 June 2007 (UTC)

Textbook of Biochemistry with Clinical Correlations (Wiley-Liss 2006, ISBN 978-0471411369, pp. 702 and 757) states that "[f]ree choline, a dietary requirement for most mammals inculding humans ..." and "[i]t should be noted that choline is now classified as a vitamin." - Quirk 13:26, 4 December 2007 (UTC)

This is not correct - choline can be synthesized from methionine (at least in humans) - I'll need to dig up the source for this.Adenylated (talk) 20:42, 7 April 2010 (UTC)

It is true that humans can synthesize some choline, but it is not enough to meet daily needs if your diet is choline deficient. Thus it is an essential nutrient. The choline article has more detail on this. I'll remove it from the list since it has been regarded as essential for some time. —Preceding unsigned comment added by 130.235.94.39 (talk) 23:47, 19 November 2010 (UTC)

---

A better mnemonic would be " The rythmn nearly proved profoundly contagious. Vitamins B7 and B9 are indeed terms for biotin and folic acid, and they seem to be increasing in usage. Google them.

---

It is a tricky thing. Our body can synthesize choline, however, without dietary choline we would likely die.Niubrad (talk) 19:57, 15 January 2008 (UTC)

it depend what is the diet. There is millions of people likely to die from starvation. Who are the supposed we ? If the diet has plenty of methonine the bio-transmetylation will biosyntesis choline. Methionine is one of the under supplemented aminoacids. It is for many reason beneficial in diet but strictly it is not a vitamin. If the criterion without dietary nnn we would likely die will be applied then water may be most needed vitamin or even more O2. —Preceding unsigned comment added by 71.201.243.75 (talk) 19:03, 15 December 2008 (UTC)

Vitamin B13

Orotic acid says that it was historically considered to be Vitamin B13, but that is not explained in this article. -- Beland 18:57, 6 October 2007 (UTC)

B12

The article currently states that B12 deficiency causes pernicious anemia. This is not quite right. Pernicious anemia is an autoimmune gastritis that decreases B12 uptake by destroying parietal cells and blocking intrinsic factor. As such, it is actually pernicious anemia that causes B12 deficiency. There are other causes of B12 deficiency-- simple dietary deficiency (which is rare), coeliac disease, and nitrous oxide abuse all cause B12 deficiency without the features of pernicious anemia. A more correct description would be "B12 deficiency causes megaloblastic anemia and peripheral neuropathy." --Kajerm 15:46, 8 November 2007 (UTC)

Vitamin B Sources

This section (specifically the first paragraph) seems to be referring to a generic "Vitamin B." The different B vitamins don't necessarily all come from the same sources, dietary supplements aside. For example, B1 comes primarily from whole grains, vegetables, nuts,and wheat germ, while folic acid (B9) comes primarily from leafy green vegetables, liver, and yeast. This section should should list sources for each of the vitamins individually. Also, the parts extolling the health benefits of beer can probably go.Nigel the frog (talk) 01:03, 7 January 2008 (UTC)

66.16.153.180 (talk) 00:24, 2 March 2010 (UTC) Disagree strenuously with the prominence given of this line: "Just about everyone in America already gets all of the B vitamins they could possibly need in their diets" Why quote the Los Angelos Times article when pubmed is available?

According to this article, J Am Board Fam Med. 2009 Sep-Oct;22(5):528-34, 22% of diabetics are b12 deficient. As the next line in the wiki article mentions, 14% of the elderly screened in this article: Neurology. 2009 Jan 27;72(4):361-7. were b12 deficient. Better phrasing could be better lifted from this abstract: Am J Clin Nutr. 2009 Feb;89(2):693S-6S. Epub 2008 Dec 30.

How common is vitamin B-12 deficiency? Allen LH.

US Department of Agriculture, ARS Western Human Nutrition Research Center, University of California, Davis, Davis, CA 95616, USA. lindsay.allen@ars.usda.gov

In considering the vitamin B-12 fortification of flour, it is important to know who is at risk of vitamin B-12 deficiency and whether those individuals would benefit from flour fortification. This article reviews current knowledge of the prevalence and causes of vitamin B-12 deficiency and considers whether fortification would improve the status of deficient subgroups of the population. In large surveys in the United States and the United Kingdom, approximately 6% of those aged > or =60 y are vitamin B-12 deficient (plasma vitamin B-12 < 148 pmol/L), with the prevalence of deficiency increasing with age. Closer to 20% have marginal status (plasma vitamin B-12: 148-221 pmol/L) in later life. In developing countries, deficiency is much more common, starting in early life and persisting across the life span. Inadequate intake, due to low consumption of animal-source foods, is the main cause of low serum vitamin B-12 in younger adults and likely the main cause in poor populations worldwide; in most studies, serum vitamin B-12 concentration is correlated with intake of this vitamin. In older persons, food-bound cobalamin malabsorption becomes the predominant cause of deficiency, at least in part due to gastric atrophy, but it is likely that most elderly can absorb the vitamin from fortified food. Fortification of flour with vitamin B-12 is likely to improve the status of most persons with low stores of this vitamin. However, intervention studies are still needed to assess efficacy and functional benefits of increasing intake of the amounts likely to be consumed in flour, including in elderly persons with varying degrees of gastric atrophy.

Nothing against Dr. Barkoukis, but don't feel that his one offhand remark in a newspaper is the final word in an important clinical issue. 66.16.153.180 (talk) 00:24, 2 March 2010 (UTC)

Have to agree that an editorial article from Los Angelos Times is a very poor reference for a nutritional article and carries very little weight in my mind.--174.118.149.54 (talk) 04:19, 17 November 2010 (UTC)

requesting link from your website

Below is a description of the product on my website. This product is Body Balance, a Liquid Whole Food Supplement, ... Loaded with Phytonutritions, ... Thank you, Benita K. Stephenson --66.227.206.112 (talk) 21:56, 20 March 2008 (UTC) [1]

rejected

Benita, I don't have authority to accept or reject a request, but this is inappropriate for an encyclopedia article about vitamin B. I've removed most the ad from the talk page since it is an ad for your product and says nothing specific about vitamin B. It obviously didn't belong here. Wikivek 70.116.5.52 (talk) 13:13, 27 June 2008 (UTC)

Folic acid is vitamin B9 or B11

Someone has changed all of the mentions of vitamin B9 on the page to vitamin B11 instead. Is this a joke or the result of some very late breaking re-classification of the B family that is not mentioned anywhere else on the Internet? —Preceding unsigned comment added by 66.92.151.2 (talk) 16:05, 22 September 2008 (UTC)

bee pollen?

whats up with the "see also" reference? —Preceding unsigned comment added by Eslip17 (talk • contribs) 10:14, 10 December 2008 (UTC)

I wondered the same thing and it seems as if bee pollen os a source of several vitamin B's. --Nakerlund (talk) 21:06, 24 March 2009 (UTC)

Health Benefits

While B vitamins are evidently vital to maintain health, I believe the 'health benefits' section originally implied that supplementation with B vitamins is benificial to health. As such, I think it should be made clear that there are no benefits to health through B vitamin supplementation (with non-pregnant physiology and a balanced diet). While there is no direct clinical evidence for this assertion, that is because no studies have been carried out into this area. The 'health benefits' section has therefore been rephrased. —Preceding unsigned comment added by 86.8.139.5 (talk) 00:02, 2 May 2009 (UTC)

Most of the health benefits section describes general functions of B vitamins and thus I feel the title should be changed to something like "functions". A "health benefits and Controversies" section could be made in addition to this if one wants to present research discussing B vitamin intake and associations between chronic diseases. However this would need to be developed and balanced.Jasonbholden (talk) 15:47, 6 July 2009 (UTC)

B3 (niacin) Tolerable Upper Intake Level?

It says here that the upper level is 35mg, unsourced. On the niacin page it says that side effects only occur with more than 1 to 1.6g per day. In pharmacies you can get B100 complex off the shelf, which includes 100mg of niacin in each (slow release) tablet. Something here is inconsistent. FlamingMoonsOfSaturn (talk) —Preceding undated comment added 05:35, 31 August 2009 (UTC).

I have just edited this section so the source is clearly stated rather than implied. 35 mg is the Tolerable Upper Intake Level, determined by the Food and Nutrition Board. The tolerable upper intake level is a technical term with a very precise meaning. For niacin they took a number similar to 1-1.6 grams and decreased it using a standard methodology to account for the quality of the research done on the subject and the severity of the toxicity. For more information on tolerable upper intake levels see my draft on my user page. Jasonbholden (talk) 04:43, 15 November 2009 (UTC)

I think you mean 'mg', not 'g'. Either way, last time I checked the UL it was 200mg, but the following website lists 900mg when they we are discussing niacin equivalents (tryptophan for example). http://www.expert-nutrition.com/niacin.html Adenylated (talk) 20:46, 7 April 2010 (UTC)

High cholesterol patients are often prescribed 1000 2000 mg of Niacin to assist the liver in lowering lipid levels. The niacin flush is fairly severe until tolerence is developed —Preceding unsigned comment added by 174.118.149.54 (talk) 04:22, 17 November 2010 (UTC)

Body building

How Does Vitamin B (B-complex) doses help proffesional body builders? —Preceding unsigned comment added by 193.34.231.236 (talk) 07:18, 12 November 2009 (UTC)

B vitamins are important in the synthesis of many compounds crucial for anabolic and catabolic processes (B3 > NAD and NADP, B2 > FAD for example) Adenylated (talk) 20:48, 7 April 2010 (UTC)

B7 and B8

Apparently, B7 is Inositol and B8 is Biotin. This is how they are associated in the french version, and some sources on the Web. Macaldo (talk) 14:52, 18 June 2010 (UTC).

Solved by this link: http://nl.wikipedia.org/wiki/Biotine. Biotin is B7 in USA and B8 in the rest of the World. Macaldo (talk) 13:04, 22 June 2010 (UTC)

B3 (Niacin)

The article mentions 35mg being the upper tolerable limit of Vitamin B3 (Niacin), but you are able to purchase 100mg and even 250mg tablets of it without harmful effect from most hight street stores. The safe upper limit of Niacin is 500mg as far as I know. Thoughts? 77.102.240.192 (talk) 18:00, 23 June 2010 (UTC)

The number 35mg/d comes from Tolerable Upper Intake Levels as published by USDA. It is an official source. Macaldo (talk) 08:00, 4 August 2010 (UTC).

Patrick Holford

I am completely baffled that this fraud is actually mentioned in this scientific article. He has a psychology degree and is trying to convince the world that you can cure HIV with vitamin C. He is literally killing people with his advice. I'm pretty sure I heard somewhere that he's also claiming that vaccines (MMR I believe) can cause autism. I won't modify the article though, since some 10 year old will probably revert it. Boonshofter 07:21, 4 January 2011 (UTC) — Preceding unsigned comment added by Boonshofter (talk • contribs)

B4

Under the "Related Nutrients" section, it says that B4 is synthesized by the human body. However, the cited source says that "an animal will die from a lack of vitamin B4." Now, the article on essential nutrients (and probably other articles) states that different species can have different vitamins. So what I'm getting at is that that source is irrelevant because it is about an experiment on animals and the sentence that preceded the citation was making a claim about humans. That being said, a publication by the USDA about major nutrients omits vitamin B4 in its list of vitamins. I don't know if that means it is not required in the diet or just that its recommended daily intake is not determined. Chances are that the statement about humans synthesizing the vitamin is indeed correct, but the fact that they used an irrelevant source makes me somewhat suspicious. Qbert203 (talk) 02:02, 28 February 2011 (UTC)

B vitamins are nitrogenous

Checking the links to the various vitamins, I find that all B vitamins contain nitrogen and none of the other vitamins, including Vitamin A, Vitamin C, the D vitamins, Vitamin E, and Vitamin K, contain nitrogen. Perhaps the article should say something about the chemistry of the B vitamins and how they are all nitrogenous, while other vitamins are not nitrogenous. —Anomalocaris (talk) 17:03, 11 April 2011 (UTC)

Section removed about vitamins slowing brain atrophy

The following was removed from the article as it doesn't add value to the article. TempestSA (talk) 04:43, 20 April 2011 (UTC)

A 2010 study concluded that taking vitamins B₆, B₉, and B₁₂ may slow brain atrophy in patients with mild cognitive impairment. Such atrophy is one predictor of conversion from mild cognitive impairment to Alzheimer's disease. However, the study was conducted by a former collaborator of Patrick Holford, a controversial figure who promotes vitamins as cures for ailments ranging from HIV to autism, and the result has been criticized by Carl Heneghan, Director of the Centre for Evidence Based Medicine and clinical lecturer at the University of Oxford, for excluding the one third of initial participants who dropped out or were not followed up, and for quoting a "30% reduction in rate of decline" which translates to only a 0.3% absolute change.

B6 toxicity

The B6 toxicity section previously stated "All effects are unconfirmed". However the reference cited in that section (http://www.nal.usda.gov/fnic/DRI//DRI_Thiamin/150-195_150.pdf) says "The causal association between high-dose pyridoxine and neuropathy has been well documented in animals since 1940 ... and in humans since 1983...." I have changed the toxicity statement to indicate that neuropathy is a confirmed effect. Mnudelman (talk) 16:48, 19 June 2011 (UTC)

B7

What is the asterisk on Vitamin B-7 about? (Someone should search the history & note any hints or lack thereof here, if no one has a quick answer.) --Jerzy·t 2005 July 5 18:00 (UTC)

Why is vitamin B-7 listed as a B-vitamin and then listed as a related nutrient that isn't classed as a vitamin anymore? ACCH (talk) 17:53, 9 July 2012 (UTC)

Vitamin B8?

Here's the entire entry for vitamin B8:

Ergadenylic acid, or Vitamin B8, is a vitamin essential to humans consisting of the nucleic acid adenylic acid. Its deficiency decreases RNA synthesis, as well as ADP and ATP synthesis. A deficiency will inhibit the breakdown of food into energy and deteriorate hormone functions. This substance was not widely recognized as a required vitamin until recently, and, for this reason, the term "Vitamin B8" was also used by some researchers to denote inositol as a chich growth factor. Adalt defficiency is exreamly rare. ADP and other derivatives of Adenylic acid have also been called "Vitamin B8"

Currently the page gives two molecules for B8: (myo-)inositol, and adenosine monophosphate (which adenylic acid redirects to, and maybe that's a problem). These two don't look anything like each other in structure. 63.95.64.254 (talk) 18:20, 14 March 2009 (UTC)

Adenosine monophosphate is NOT the same as myo-inositol. This is an error and needs to be removed. Inositol hexaphosphate is the same as myo-inositol which is vitamin B8. Does anyone else agree that inositol hexaphosphate should be linked instead of adenosine monophosphate? If no reply, I will change it in a couple of days to correct the article. — Preceding unsigned comment added by 149.144.9.73 (talk) 02:27, 12 September 2011 (UTC)

History of Vitamin Discovery

I have no real knowledge of this subject, but I've noticed a general lack of info on the history of vitamin discovery, particularly with regards to the B-vitamins. I've looked at this page, the main vitamins a page and the biography page for Elmer V. McCollum who is credited with discovering the B vitamins. Nowhere have I found a comprehensive discussion of the original discovery of vitamin B as a single substance, why it was thought to be just one substance or how/when it came to be understood as a complex. Only vague references exist. It would be wonderful if some of the experts in the field could contribute some extra info re. histories, dates, people, studies etc. There seems to be a general dearth of such info on the web as a whole. Bittercress (talk) 17:37, 12 March 2012 (UTC)

Shouldn't the article also credit Sir Jack Drummond with naming Vitamin B?203.184.41.226 (talk) 21:32, 14 September 2012 (UTC)

Production

Are not B vitamins produced by the body it's self> — Preceding unsigned comment added by 72.95.139.12 (talk) 17:02, 13 May 2013 (UTC)

Vitamins are defined as substances that cannot be produced in sufficient quantities by an organism, and must be obtained from the diet. Deli nk (talk) 17:05, 13 May 2013 (UTC)

Stress

I'm surpised that this is not in here: "Given the direct and indirect costs of workplace stress, these findings point to the utility of a cost-effective treatment for the mood and psychological strain effects of occupational stress. These findings may have important personal health, organisational and societal outcomes given the rising cost and incidence of workplace stress."

http://www.ncbi.nlm.nih.gov/pubmed/21905094 Kortoso (talk) 20:39, 13 June 2013 (UTC)

Choline

The section on Choline has a completely unsourced claim that it is only necessary for the survival of some mutants. This contrary to wikipedia's own entry on choline. Until someone provides a source I am removing it for the purpose of internal consistency. 173.160.220.249 (talk) 15:23, 7 August 2013 (UTC)

A few things

1.Pangamic acid is better known as dimethylglycine: http://www.pdrhealth.com/drug_info/nmdrugprofiles/nutsupdrugs/dim_0097.shtml Note: Pangamic acid is not DMG as many sorces claim - please see 'Merck Index - Susan Budavavi' or 'Chemical Abstracts' for proper structure.

2.Also,what is the reference for B-10 being Pteroylmonoglutamic acid and "other vitamins"? Pteroylmonoglutamic acid is synonymous with Pteroylmonoglutamate and Folic Acid ( http://www.google.com/search?q=cache:ymlKMg7d2wwJ:www.nap.edu/nap-cgi/morehits.cgi%3Fdisplay%3Dtext%26isbn%3D0309069890%26term%3Dfolic%2Bacid%26file%3D113-149.htm+pteroylmonoglutamate&hl=en&gl=us&ct=clnk&cd=11)so I made the Pteroylmonoglutamic acid page redirect to the folic acid page but maybe they should just change the name to folic acid.

3.One reference(though not a good one) says B-10 is PABA: http://www.althealth.co.uk/services/info/supplements/vitamin_b10_1.php So does the Vitamin wikipedia page: http://en.wikipedia.org/wiki/Vitamin another is http://newstaff.com/nutrientscatalog/designations.html but again there are no references!

4. Vitamin H is listed as inositol but most searches list both vitamin H and B-7 as synonyms for biotin: http://www.vitamins-supplements.org/biotin.php

^.Briggs who anounced B10(chick feathering) & B11(chick Growth) in 1943 belived them to be forms of Folic acid but not Pteryl-mono-glutamic acid as thay had a different line on chromotography than Pteryl-mono-glutamic acid or B12, also Pteryl-mono-glutamic acid dose not pass his isolation process or solubilities for B10 & B11 (PABA & 'Pteryl-hepta-glutamic acid' do). I have seen over 20 rerfrences of diffrent authors in Europe (French, Spanish & Italian; mostly french including Medical Dictionaries; non French ones refer to French Merck Index for B10 as PABA) claiming B10 is PABA. Very few in English. The refrence that says B11 is 'Pteryl-hepta-glutamic acid' is "Groot Woorden Boek der Geneeskunde(Encyclopedia Medica)" by H. De Haan & W. Dekker 1957 Bertei

Friend of mine later saw a journal 'General Vitamin Review - 1947' of 'The University of Maryland' (Hard to get) that 'George M Briggs' using Gel Chromotography found Vitamin B11 to be 'Pteryl-hepta-glutamic acid' Bertei — Preceding unsigned comment added by 114.76.76.26 (talk) 10:29, 28 October 2013 (UTC)

Someone may also want to add some info about the relationship between PABA and folic acid ( http://www.drlera.com/vitamins/vitamin_bx.htm).

Although this has been suspected in the past, Vitamin B10 and B11 can not posibly be Vitamin R and Vitamin S. B10 and B11 are soluble in ethanol. vitamin R and Vitamin S are NOT soluble in ethanol. (some folates are not soluble in alcohol like folinic acid and PGA; some folates are soluble in alcohol like PHGA)Bertei

This page is a mess! --Renwick

Vitamin I

I doubt the hikers' standing-joke slang term "Vitamin I" for Ibuprofen needs any mention in the article, tho i am turning that redir into a Dab. --Jerzy·t 2005 July 5 18:00 (UTC)

Actually, I'll take care of Vitamin I in Vitamin.

~ender 2005-10-25 11:52:MST— Preceding unsigned comment added by 68.110.171.226 (talk • contribs) 06:55, 26 October 2005 (UTC)

list of Vitamins

Is there any real purpose to the list of B-vitamins as it is subsequently listed in uses.?— Preceding unsigned comment added by Alexllew (talk • contribs) 13:18, 23 April 2007 (UTC)

I believe the list should be maintained and expanded. If there are more knowledge on effects on human body of other related B-vitamins then vitamin should definetly moved up to the tables of defficiency and others. Like there is a menation of B22 which needs deeper research, but it is not even in the list http://www.lifeinyouryears.net/everyvitamin.html Andrius Stasauskas —Preceding undated comment added 08:47, 23 January 2017 (UTC)

Primary production?

I've been reading that plankton are limited (and prevented) from growing by a lack of B-vitamin in ocean waters. Where does this B-vitamin come from? I see a vague reference to plant production in sources, but surely plankton existed prior to plants being washed into the ocean...
~ender 2013-10-16 18:07:PM MST— Preceding unsigned comment added by 174.17.43.160 (talk • contribs) 01:08, 17 October 2013 (UTC)

Shouldn't Vitamin B9 be called Folate?

Vitamin B9 is listed as folic acid but folic acid is the inert, cheap, commercially available form. It needs to be converted to folate in order to be biologically active. Folate is also available commercially but its more expensive.Teknozilla (talk) 10:06, 15 May 2014 (UTC)Teknozilla