Talk:Vitamin C

Should we renominate this for featured article?

I've been looking over this article, and its pretty comprehensive, well sourced and attractive. Should we try again for FA? It's been three years now since it failed! Must've changed loads. I think there could be some reference cleanup and there are a few loose {{fact}} tags, but apart from that I can't see any other major reasons why it would fail... If anyone sees any, could you outline them here and I'll help fix them and we can try again for FA. Woop! Jack · talk · 21:56, Monday, 19 February 2007

I've nominated this for a GA review, a crucial step the way - Jack · talk · 05:23, Wednesday, 21 February 2007

Kakadu Plum

Is there any sources for the vitamin C content of this? Neither this page, nor the Terminalia ferdinandiana page list sources. If there are no sources, surely it should be removed? Heywoodg (talk) 22:15, 23 March 2011 (UTC)

Brand Miller, J., James, K. W. and Maggiore, P. M. A. 1993. Tables of composition of Australian aboriginal foods, Canberra, A.C.T: Aboriginal Studies Press. VertebralTomb (talk) 19:32, 2 November 2011 (UTC)

"Volunteers"?

Whny the scare quotes on the Iowa State Penitentiary volunteers for scurvy studies? --Yaush (talk) 22:35, 19 July 2011 (UTC)

Because imprisoned people who may get out early, or some special favor which only restores what everybody else has, are not really volunteers in the true sense of the word. They are under heavy duress. That is why using prisoners as medical subjects has generally been outlawed-- they can't really give free consent. If you consider the idea of female prisoners volunteering to have sex with their guards, you'll see the point. SBHarris 02:27, 20 July 2011 (UTC)

This rationale for the scare quotes seems to me to violate WP:NPOV. If removing the scare quotes is also thought to take sides on a controversy unrelated to Vitamin C, I suggest we drop the word "volunteers" completely. I'm going to go ahead and make that change. --Yaush (talk) 14:03, 20 July 2011 (UTC)

Vitamin C effect on colds in cold-excercise

A preventive effect of vitamin C on colds has been seen in five separate prospective randomized double-blind placebo-controlled human trials of low temperature exercise. Here are three: [1]. Also the meta analysis of this data combined is strongly positive. This is not "cherry picking" data, as each of the separate trials were designed to answer this specific question, so there is no post-hoc data selection of data that was never meant to be used in this fashion. Nor are there negative trials which have been overlooked by Cochrane. (If you think so, find them). In such cases, a meta analysis strengthens a conclusion, not weakens it. Nor is Cochrane Review known for its credulous data manipulation! As I said in the summary, if you won't believe in gold standard data of this type, what sort of data WILL you believe? I've restored the statements, which are fully justified. SBHarris 00:34, 23 August 2011 (UTC)

oxidative quackery

My understanding of this is that 'oxidative stress' is a somewhat controversial topic, and not everyone is in agreement about it as a genuine issue for biological systems. Vitamin C has become associated with this nonsense since it is a reducing agent. And I do know what that term means.

Vitamin C seems to be viewed as a sort of 'cure all' these days when it's principal role is very clearly to act as a cofactor in collagen synthesis. This seems to be buried in the middle of all of this drivel when it is the most important thing by far that Vitamin C is involved in. A fact that is surely clear to anyone who knows what scurvy is.

This article and indeed this discussion page are far far far too long! Perhaps someone would like to sprinkle some vitamin C on it and reduce it (lol)! Johnpretty010 (talk) 00:54, 24 September 2011 (UTC)

This is a very poor summary of the functions of vitamin C. Ascorbic acid has a wide number of biological functions, and only some are known. While the term 'oxidative stress' might be debated because it is often improperly used, it is clear that it is an issue for biological systems and has serious health effects. The role of vitamin C is still being elucidated. VertebralTomb (talk) 19:31, 2 November 2011 (UTC)

Vitamin C Absorption

The section on vitamin C absorption is in accurate. The absorption study referenced did not measure doses above 1.25 g. VertebralTomb (talk) 19:35, 2 November 2011 (UTC)

I fixed the relevant text. The reference to the absorption of 12+ g was removed, as there was no reference listed for that data.VertebralTomb (talk) 16:09, 3 November 2011 (UTC)