Ha, ha, gotcha!
The greatest supplement: is a marvelous machine that will succumb to your personal desire to gain muscle and strength, or lose fat tissue, if one can become the master of the mind, and this is the Human Body.
In my opinion, there is no greater supplement, then framing your personal consciousness and intelligence around your personal and functional properties of your own body, and applying this in what you are wanting to achieve within diet and fitness.
The communicative-artery between your goal, and whether you stand on your personal podium of achievement, is the flesh occupying the contents of your skull, and its personal abilities to apply diet and fitness education toward the application of your fitness goal.
This is the greatest supplement known to man/woman.
Now, go out and ROCK THE HOUSE TODAY!