Talk:Riboflavin
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There was a question previously if riboflavin was necessary for the synthesis of FAD in all living cells. Looking at the structure of riboflavin, and then flavin mononucleotide, and then FAD, I see no way around it. Even if riboflavin is not an essential additive in species X, they'll have to synthesize riboflavin to be able to make FAD. David M
I believe beriberi is the result of a B1 defficiency, not B2... According to [1], "deficiency syndromes are characterized by sore throat, swelling of mucous membranes, mouth and/or lip sores, anemia, and dermatitis" - this doesn't sound like beriberi to me. Of course, I could be wrong - I'm not a doctor. User:nyh
After a lot of time with what I believe is a wrong fact (the beriberi connection) in the text, I decided to mark this as a factual dispute. I hope that someone can help me verify the correct fact. Nyh 08:53, 10 Mar 2004 (UTC)
- You're right, it's wrong. Beriberi is caused by thiamine deficiency. A riboflavin deficiency doesn't have any "disease" name to go with it, probably because it almost invariably occurs in combination with deficiencies of other water-soluble vitamins. == Nunh-huh 08:58, 10 Mar 2004 (UTC)
- http://en.wikipedia.org/wiki/Beriberi also shows it is B1 and not B2. Bryan 13:28, 13 March 2006 (UTC)
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[edit] GM?
The author has left me wondering what GM stands for in the sentence: "In processed foods it is very likely to be GM ..." I would have edited the article to make it less vague, except I am hardly an authority on biochemestry.
- It stands for Genetically Modified, I believe; meaning it is produced by an engineered bacteria. However, I'm not sure this is the best way to word that paragraph (and we need to clarify and wikilink something there). I'm not sure how to improce it either.RJFJR 01:22, Feb 12, 2005 (UTC)
[edit] Bright yellow urine
I added a comment on this, I hope it's cool.
[edit] E101?
The designation "E101" appears twice in the article, but with no reference. I'm curious what it means. Anastrophe 05:23, 4 December 2005 (UTC)
[edit] Florescence,
I think a comment on the “bright yellow color” actually showing florescence under black light should be added. This fact shows why this vitamin is used as a food additive (Because of it’s nutritional value, and it’s effectiveness as a natural dye)
[edit] Deficiency
"it is thought deficiency is common"
By whom? This needs a reference cited. Very doubtful it is correct, especially in Western countries.
[edit] Contradiction
There seems to be a contradiction: the first sentence states that Riboflavin is easily absorbed, and water soluble, the last paragraph says that it is not, and is secreted in urin (turning it bright yellow) and is difficult to deliver in water as it is insoluble!? any citation on this would be insightful.
this contradiction was added on March 23, 2004 if you look in the history
[edit] ramen high in riboflavin
I got this info from reading the nutrition chart on the packaging
[edit] Overdose?
It's good to have a section discussing overdose conditions and symptoms in any page discussing a 'healthy vitamin'. If anyone has this information it'd be good to place it here.
[edit] Factual discrepancies and errors
There seem to be a couple of factual discrepancies on this article. Some of the statements that are made, e.g. "Vitamin B2 is also required for red blood cell formation and respiration, antibody production, and for regulating human growth and reproduction. It is essential for healthy skin, nails, hair growth and general good health, including regulating thyroid activity," are not substantiated in the reference cited, and some other statements, e.g. "Any excess is excreted in the urine, frequently imparting a bright yellow color," seem to contain factual errors. Not being a biochemist myself, I don't feel confident making substantial changes, but are those statements valid? Katechen 20:48, 31 January 2007 (UTC)
