The main ingredients of soda are sodium bicarbonate and water, which is a kind of weak alkaline drink. 3, calcium loss: soda contains phosphorus, food flavoring and preservatives, long-term consumption will lead to calcium loss in the body, affecting health; 4, stomach discomfort: the body itself will adjust the pH balance, the normal pH value of 7.35-7.45, moderate consumption of soda will not change the body’s pH, and will not corrode teeth, but it is not recommended Long-term consumption of soda containing additives may upset the acid-base balance in the stomach. The alkaline sodium bicarbonate in soda reacts with stomach acid to neutralize it, releasing carbon dioxide that the body cannot absorb, which may lead to uncomfortable symptoms such as burping or gastric distention. Also a decrease in stomach acid may lead to problems such as indigestion. People with low stomach acid levels are not suitable for long-term soda; 5. Other: for patients with high blood pressure, kidney disease, heart disease, if long-term soda consumption, there may be an increased risk of alkalosis.