Whey, branched-chain amino acids (BCAAs), creatine, psyllium husks, caffeine and other non-food items that athletes add to their diet to improve training and recovery. Questions are about which supplements are appropriate in which circumstances, and the details of using them.
Many of my friends use a pre workout such as C4 prior to lifting. I have never used one but am curious if I would see a major change in the effectiveness of my workout. I do a lot of strength training ...