Most energy drinks are loaded with caffeine and sugar, which can cause jitters, dehydration, headaches, and even affect your heart if consumed often. While an occasional drink may not cause harm, regular Carnitine Supplementation in Chronic Hemodialysis PatientsA Literature Review Impact of sleep disorders on mental health: A systematic review If you are like a lot of people, you may have never heard of carnitine but this important nutrient is critical for our body's ability to optimally burn fat required for energy.