If you’re into competing, which I am beginning my journey toward, this book has some GREAT info on supplementing and my favorite section on Carb Cycling. I’ve read that section 5 times at least and I’m still learning. That is what I am working on right now….so in the coming weeks you’ll see my experimentation with carb cycling. Find it on Amazon.com….GREAT place to find it. I got mine for under $10 including shipping and it was brand new.