Energy drinks are made for athletes, containing caffeine-based, associated with sugars, dietary supplements (taurine, vitamins, minerals) or plant extracts, additives, preservatives, flavorings (citrus), whose job is to give energy to the body during competition, but the energy drinks that are consumed in larger quantities cause diseases such as weight loss, decreased appetite, organ damage, etc..For this reason the professional sports nutritionist, sports doctor, etc. are qualified to doping the athlete and the nutritionist will help to balance the diet and measure the doping in the athlete, before, during and after training.