Is the carbon dioxide in cola harmful to health?

Carbonated drinks contain gas, that is, carbon dioxide will stimulate the secretion of gastric juice, and hyperacidity will easily lead to bloating, reduce appetite and reduce daily food intake. Insufficient intake of nutrients in diet will affect normal growth and development, learning effect, sports performance, work performance and health. Carbonated drinks contain sugar. A can of 355 c.c cola contains about 35 grams of sugar, equivalent to 140 calories, equivalent to half a bowl of rice. However, only the calories are equal, but the nutrients are quite different, because sugar has only calories and no other nutrients at all. It is empty card food or junk food with calories. If you drink regularly, every little makes a mickle, you will gain weight and easily develop a bad eating habit of being sweet. You only like sweet water, not boiled water. In addition, sugar has a bad effect on dental health. Phosphoric acid, another component of carbonated drinks, will reduce the absorption of calcium in the body and affect the normal development of bone growth and height. Children and adolescents in growth and development need enough calcium to make bones grow and develop normally, maintain good bone metabolism and achieve the best bone density, so it is even more inappropriate to drink carbonated drinks. In addition, phosphoric acid will hinder the absorption of iron, which is one of the main substances for making blood. Once iron is not enough, it will cause iron deficiency anemia. Children who are growing fast need enough iron to make blood quickly. Especially adolescent girls, the demand for iron is higher, because a lot of iron is lost every month during menstruation. Therefore, girls who love carbonated drinks are more prone to iron deficiency anemia. Caffeine contained in various colas can stimulate myocardial contraction and accelerate heartbeat and breathing; It will stimulate gastric acid secretion and harm the stomach; It has diuretic effect, and the elderly are prone to dehydration; Long-term drinking will be addictive. Once you don't drink it, you will feel uncomfortable, listless or have a headache. If you drink too much for a long time, that is, caffeine exceeds 200 mg every day, there will be chronic poisoning phenomena such as indigestion, headache, insomnia, nervousness, trembling, irritability and rapid heartbeat. Caffeine is found in cola, tea and coffee. A can of 355 c.c cola contains 65 mg of caffeine, a can of 350 c.c oolong tea contains 80 ~ 120 mg, and a cup of instant coffee contains 85 ~ 200 mg. Therefore, if you drink more than three cans of coke a day, or drink a can of coke, plus a can of oolong tea and a cup of coffee, you will consume more than 200 mg of caffeine, which will easily lead to chronic poisoning if you drink it for a long time. Tooth corrosion (the protective layer becomes thinner and the teeth become brittle) is caused by acidic substances, while dental caries is caused by eating polysaccharides. Dr. Locke observed that the teeth of 12-year-old teenagers who drank 28 grams of sparkling drinks every day were obviously eroded; Drinking 4 glasses of sparkling drinks every day, the tooth damage of adolescents aged 12 is as high as 25.2%, and that of adolescents aged 14 is as high as 5 1.3%. You can go home and do an experiment. If you can't clean the toilet, pour a bottle of coke into it and wait for a few hours before brushing to ensure cleanliness. Moreover, a layer of luminous glaze on toilet porcelain has also been corroded, and the surface of porcelain will become dull ~ ~ This shows how corrosive it is! Coke is really best to drink less and drink more. Not only will calcium be lost. Coke! What drink is suitable for eating fried chicken? Coke! Indeed! A hamburger, a coke, or a fried chicken, a coke, that's really a wonderful taste. However ... cola, a modern beverage made from a special secret recipe and popular from the west to the east, is not as high in caffeine as coffee, but it is comparable to brewed tea. According to statistics, a cup of brewed tea contains about 50 mg of caffeine, and a cup of cola with the largest sales volume on the market also contains as much as 46 mg of caffeine. In addition to caffeine, cola also contains phosphoric acid. Although the amount is not much, it will interact with calcium in the human body, causing the loss of precious calcium. In addition, caffeine can also promote the loss of calcium, so drinking too much cola can't prevent osteoporosis. As we all know, according to the formula, cola is divided into ordinary cola and diet cola. These two cokes contain as much coffee as phosphoric acid, but Diet Coke uses saccharin instead of sucrose, which has lower calories. Although it helps to control weight, it also causes bone loss. In addition, Harvard University has studied three popular brands of cola in the market, and found that cola is lethal to male sperm, which will affect embryo development when combined with eggs; Pregnant women drink cola, and caffeine in cola will also pass through the placenta, which will affect the development of the fetus and make the baby underweight and have poor resistance after birth. Coke is such a threat to people's health, so we must drink as little as possible like coffee; In particular, men and women who are preparing to give birth, pregnant women, middle-aged and elderly people, especially menopausal women, have already threatened osteoporosis and are prone to insomnia. They should try to drink less cola drinks. How to balance the consumption of coke? 1. Reduce it as much as possible and drink it! Never more than two cans a day. 2. Remember to supplement calcium after drinking cola, and take it from milk, yogurt, calcium tablets and calcium-containing foods. 3. Keep exercising, especially from weight-bearing exercise, and strengthen bone density.