Talk:Avidin
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[edit] In Practice
I have asked my GP about the issue of avidin and its relation to vitamin deficiency. He told me there was no danger of vitamin deficiency even when consuming the amount of eggs that an average bodybuilder takes in a day.
- For anything to be included in the article, we need reliable sources. Icek 00:32, 24 June 2007 (UTC)
[edit] Digestability
One egg contains about 3.6 g egg white protein (according to the USDA food database). According to the Wikipedia article on egg white, 0.05% of that is avidin, that is 1.8 mg per egg. If one ingests 300 micrograms (the RDA, I know there are institutions which recommend only 150 micrograms per day) of biotin, that is 1.23 micromoles. Each mole of biotin needs 1/4 mole of avidin to bind it, so we need 0.31 micromoles avidin, which would be about 21 mg of avidin, more than 11 eggs, to bind all the biotin. If the avidin really becomes a problem, only comparatively little of it is digested. Why is it not broken down more efficiently by digestive proteases? Icek 00:32, 24 June 2007 (UTC)
