I read that he's saw his abs at the end of the challenge, however the time span between the before and after is almost 6 yrs. I also think that he has put in alot of hard work and dedication to achieve what he has achieved. He could have taken something "stronger than natural", but he still had to bust his butt working out and eat according to his goals.....and on that site they will not list anything that he took that's not natty b/C they have had a little legal matter and as far as I know only sell natty supps.