Currently, some children often quench their thirst with Coca-Cola, which is also often found on the dining table. According to the survey, each bottle of cola contains about 80 milligrams of caffeine, and if you drink too much, it can often lead to central nervous system excitement, which can lead to irritability, tachycardia and insomnia, eye medication, tinnitus and other symptoms. Therefore, do not drink cola continuously and in large quantities. American scientists have conducted a survey of 4455 children, found that often drink cola and rarely drink milk teenagers, serious malnutrition. Because the coffee in Coke can increase the excretion of urinary calcium, and thus unfavorable to the development of children’s bones. Therefore, scientists believe that the incidence of bone diseases and osteoporosis in the next generation will be three times that of adults now. In recent years, many scholars have pointed out that the potentially harmful effects of caffeine on pregnant women can be transmitted to the fetus through the placenta, which can cause defects in the fetus. Therefore, pregnant women are advised not to drink cola beverages. In addition, long-term consumption of sweet drinks will reduce children’s hunger, affecting children’s appetite, but also produce dental caries.