Do you mean plain old suppliments like Whey and Creatine, stuff like that?
Though I don't know for certain, I'm going to say no, they don't. Suppliments are basically putting a little extra of what you already have inside you. Now, prohormones and steroids, thats a different story.
Again, I'm just guessing so maybe someone more knowledgeable will chime in.
Originally Posted by Phineas
Don't you want to be compared to Chuck Norris? Hmm?? Don't you???