Talk:B vitamins

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[edit] 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)


[edit] 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

[edit] 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)

[edit] A few things

1.Pangamic acid is better known as dimethylglycine: http://www.pdrhealth.com/drug_info/nmdrugprofiles/nutsupdrugs/dim_0097.shtml

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 Merk 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

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

[edit] 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"

[edit] 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)

[edit] 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 Bw – 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)

[edit] 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 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.

[edit] 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)

[edit] list of Vitamins

Is there any real purpose to the list of B-vitamins as it is subsequently listed in uses.? Alexllew

[edit] 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)

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)

[edit] Vitamin B13

 Please help improve this article or section by expanding it.
Further information might be found on the talk page or at requests for expansion. (October 2007)

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)

[edit] 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)

[edit] 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)

[edit] requesting link from your website

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