There is some thought that NAC should be taken on an empty stomach or avoid protein soon after taking, because there may be a problem absorbing it with amino acids from protein.
I don't know how accurate this is however.
I can't find restrictions about Biotin. This source usually has
details, but not about food etc.
http://www.umm.edu/altmed/articles/vitamin-h-000342.htm
You should space out Biotin and lipoic acid however, because they share a transporter in the body. Take one in the morning
and the other at night. This is not set in stone but I've seen a paper on that sharing transporter information, so if you want your money's worth and good results, space them out.
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All truths are easy to understand once they are discovered; the point is to discover them.-- Galileo Galilei
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Weezie looking at petunias 8.25.2017
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