There's a lot of good information in here. My one complaint is that sometimes it feels like the author is desperately trying to prove his points to you. He'll start spouting off all this research that back his claims, but most of the time the research hardly seems conclusive at all. I started skipping those paragraphs to save myself time and aggravation. I'm already in pretty decent shape so I bought this book to learn more about diet and how to mix up my workout routines. It has been very good for that.I also bought Men's Health: Book of Muscle. I haven't had time to read that one yet. But from thumbing through it, it looks to be a little more comprehensive than The Testosterone Advantage Plan.