Unfortunately the articles are not yet available (server upgrade issues) or I would just find the link to the appropriate article. Here is a good synopsis: http://forums.longhaircommunity.com/...=1#post1111893

I think if you did too much protein, your hair would let you know by acting abnormally and moisturizing treatment(s) should fix the problem. So I don't think you can do irreparable damage from too much protein provided you realize that is your problem and moisturize.

Hope that helps.