I have not heard any talk about peoples using protein supplements as part of their nutrition regimene, which I I highly recommend and feel is essetial to proper brain function. Most whey protein products out on the market are loaded with BCAAs, taurine, and glutamine. Mark previously reported on the possible benefits of BCAAs. You can get a 2lb Body Fortress supply from Walmart for $12, and the quality of protein is very good. I take one scoop in the morning and one at night.