Just speaking from experience, I went psychotic on a protein diet a couple of years ago, using a regular protein powder and alot of lifting. My body changed dramatically within a few months and the second I quit taking the supplements, drinking the shakes, and doing the heavy lifting it all went away - even though I was still training in martial arts. Have had much more success with light lifting, some protein, and cross training. What I have now won't deflate. Hope not anyway