Don't worry Hayes, I use a vitamin and amino acid supplement called Advocare. Some types will boost your energy while others will give you more of a boost than a sugar rush during your workouts. The one I use is Spark Energy Drink, there is little caffeine and NO SUGAR! This has helped me going throughout the day when I need to do any small to mid size work load. If you are looking at a all-out workout routine I suggest Advocare Muscle Fuel. This is not a straight up energy drink like Monster or Red Bull this is a container filled with Advocare as a powder and a measuring cup the you pore into a 8oz glass of water. I have used this for years and would recommend this to anyone.