Typically sports drinks are 6–8% carbohydrates. A 6% solution contains about 14 grams of carbs per 8 fluid ounces (240 ml) ( 6 ). However, some sports drinks are low- or zero-carb in an effort4 Energy Drinks. The skin around your eyes is delicate, and as we age, it's normal to lose moisture in this area. Rather than hydrating this skin, energy drinks can dehydrate it. Drinking these often can cause a sunken look— and ultimately mean darker under-eyes and more fine lines, Dr. Jose Mier, Founder of Heliotherapy Research 93UR.