Soft drinks In 2003, the World Health Organization launched a fierce attack on the food industry and published a scientific report, accusing the sugar in soft drinks of being the cause of childhood obesity. In 2003, the per capita consumption of soft drinks in Britain was11liter, which contained a lot of sugar. Each can of cola contains about 7 tablespoons or 13 pieces of sugar, and the heat provided by syrup and corn syrup in soft drinks accounts for more than 10% of our total calories. Recent research shows that the increase in consumption of sparkling drinks is closely related to the increase in the incidence of esophageal cancer. In the past 25 years, this rare cancer case has increased by 570% among white men in the United States. At present, more than 7,200 people in Britain suffer from esophageal cancer every year, which has increased by 655% in the past 30 years. At least 40% of sparkling drinks are consumed by children, but soft drink addicts are four times more likely to drink less than one glass of milk a day than others, so their calcium intake may be lower, which is especially relevant to growing girls. The probability of osteoporosis depends in part on the early bone density. By the age of 18, girls have achieved 92% bone density growth, but if they don't get enough calcium during their development, they will "catch up" in the future. Osteoporosis will not appear for decades, and preliminary research shows that drinking soft drinks instead of milk leads to an increase in children's bone problems. Caffeine in soft drinks makes the problem worse because it promotes the excretion of calcium in urine. Drinking 350 ml (12 liquid ounces) of caffeinated soft drinks will lose 20 mg of calcium or 2% of the recommended daily nutritional intake (RDA) in the United States. The loss of calcium, coupled with the relatively low calcium intake of young girls who often drink soft drinks, will greatly increase the risk of osteoporosis in the long run. Caffeine can also cause nervousness, irritability, insomnia, rapid heartbeat and headache. Several other additives in soft drinks occasionally cause allergic reactions, and yellow and red pigments can cause asthma, measles and runny nose, leading to sensitive ADHD in children.