About 3 bottles of red bull is the best intake, which can achieve the best excitement effect. Drinking 10 bottle is also safe, but too much will not achieve the expected effect. There are almost no side effects. Sulfuric acid is an essential amino acid for human body. Too many bottles will decompose quickly. But long-term drinking is naturally unhealthy, because it is comprehensive. It is best to get vitamins and amino acids from food.