Gatorade. 8 ounces has 50 calories and 110 milligrams of sodium. Katz says that Gatorade might be appropriate for elite athletes like Lance Armstrong. But it is marketed to everyone, providing unnecessary calories, sugar and salt to the average person. Gatorade says the drink's ingredients serve to help rehydrate, replenish and refuel for optimal performance.. Powerade. 32 ounces contains 280 calories, 220 milligrams of sodium and 76 grams of sugar. Like Gatorade, Powerade, made by Coca-Cola, is a sports drink marketed to appeal to Olympic couch potatoes, says Katz.