Myth: Excessive protein intake damage your kidney.

Truth: There is no evidence that high protein diets are harmful to the kidneys of healthy athletes and women. It's elevated glucose that causes the damage.

Higher protein intakes do not cause any damage whatsoever to healthy kidneys.

Source:
http://www.wellsphere.com/exercise-article...y-damage/656986

http://www.bodybuilding.com/fun/layne38.htm

http://www.charlespoliquin.com/ArticlesMul...cle.aspx?ID=253