I'm trying to build my muscle mass by doing a rigorous upper body oriented workout routine three times a week and trying to eat a high protein diet. I was using whey protein supplement as well for a while, and that was moderately helpful. But I'm not seeing the results I want. I don't want to be beefy and veiny, I just don't want to be skinny anymore. Anyway, obviously if there were serious health concerns, they wouldn't sell it (then again, look at cigarettes...). I've hear some horror stories about it causing seizures and all kinds of bad stuff, but I also know people who have used it and say that it's fine as long as you drink lots of water and don't use it for extended periods of time. What are the board's thoughts?