The energy you want. The taste you love. Coca-Cola Energy is the energy drink from Coca-Cola. Each 12 oz slim can contains 114 mg of caffeine. Coca-Cola Energy contains Niacin, Vitamin B6 and Guarana. It gives you the energy you want with a great Coca-Cola taste. Coca-Cola Energy comes in four varieties: Coca-Cola Energy, Coca-Cola Energy Zero Sugar, Coca-Cola Energy Cherry and Coca-Cola Energy Zero Sugar Cherry.