Before trying GFUEL (I first heard about it during the FaZe COD MW2 days!) I felt sluggish all of the time and like I was always tired but after my first purchase I've never felt better! Drinking GFUEL makes me feel better in many ways; I feel much less tired throughout the day, it helps me warm up on games quicker and it tastes amazing so there's never a reason for me to not drink one in a day. I now own 3 tubs and have tried all sachets of flavours! It really has changed my life for the better and I couldn't recommend it more!