We're always told that the yolk has enough biotin to cancel out the avidin in the whiye. However, even though the yolk does have the most biotin of any food, it does not have enough biotin to make up for what is has been bound by the avidin.
http://www.mercola.com/2005/feb/9/raw_eggs.htmDr. Sharma, PhD, who is a biochemist with Bayer, contacted me about this issue. His investigation into the matter revealed that there is not enough biotin in an egg yolk to bind to all the avidin present in the raw whites. He found that 5.7 grams of biotin are required to neutralize all the avidin found in the raw whites of an average-sized egg. There are only about 25 micrograms -- or 25 millionths of a gram -- of biotin in an average egg yolk.
So in dogs who recieve kibble as their only source of nutrition, raw eggs shouldn't be fed often.
Bookmarks