This is not the best way. Most of the energy in energy drinks is sugar and caffeine in drinks. Therefore, energy drinks all contain high calories. Some people also drink drinks containing ginseng, vitamins and green tea. However, many energy drinks contain many harmful ingredients, such as technetium and other trace elements. Moreover, it is impossible to detect the content of these stimulating elements in the beverage. But in general, the scalar content in the bottle is not much. For example, a cup of coffee generally contains 125-250 mg of caffeine, a can of cola contains about 35-38 mg, and a bottle of energy drinks contains about 280 mg. In other words, if you drink energy drinks, you can consume up to 200-300 mg of caffeine every day.