1. soda is called weakly alkaline water or weakly alkaline water, in which sodium bicarbonate can neutralize gastric acid, strengthen gastrointestinal absorption and strengthen stomach. The safe production of soda water is good for health.
2. Li Duo explained that after a healthy person drinks water, the water enters the intestine through the stomach (the pH value of gastric juice is 0.9 ~ 1.5, which is acidic), and then most of it is absorbed in the intestine (a small amount is absorbed in the stomach). The whole process includes the replacement and transport of anion and cation, the adjustment of pH value, the excretion of metabolites and the absorption of nutrients. The kidneys and intestines themselves regulate the acid-base to maintain the acid-base balance in the body.
3. "The gastrointestinal tract will quickly adjust the pH value of weakly alkaline soda water entering the body to the pH value of the internal environment of the body through its own adjustment function." Li Duo stressed that drinking soda water, ordinary mineral water, cold boiled water, etc. It will not change the pH value of human body, let alone the acidic constitution.
Disadvantages:
1. Drinking soda water for a long time may cause alkalosis, manifested as anorexia, nausea, headache, convulsions and even coma, especially for the elderly and patients with kidney disease.
2. Some soft drinks have high phosphorus content, and the introduction of this beverage will cause the loss of calcium in bones. With the increase of soft drink consumption, soda water has become the main cause of osteoporosis. In addition, tooth loss, periodontal disease and gingivitis are all related to high phosphorus intake, especially from soft drinks. Children who drink soda water have a 3-4 times higher risk of fracture than those who don't.
3. The sugar and acid in soda can easily dissolve the enamel on the tooth surface.
4. Soda water contains preservatives. Sodium benzoate is used as a preservative in many foods, including drinks, fruit juice, margarine, candied fruit, bacon and jam. Sodium in preservatives will reduce potassium intake. Some reports show that sodium benzoate may cause rash, asthma and eczema.
Source of soda water:
Joseph priestley, an English chemist, was the first person to discover how to make soda water. In a brewery in Leeds, he put a bowl of water in a place above the beer barrel. After that, carbon dioxide and nitrogen cover the water bowl on the fermented beer barrel again. At that time, people mostly used carbon dioxide and nitrogen to kill rats. Joseph priestley was surprised that the water tasted better after being aerated, so he offered soda water to his friends as a refreshing drink. 1772, joseph priestley published a book, The Combination of Water and Gas, which described that dropping sulfuric acid on chalk would release carbon dioxide and encouraged people to collect gas in a bowl filled with water.
177 1 year, Swedish chemist Ruben Begemann independently invented a manufacturing process similar to the discovery of joseph priestley in carbonated water. But it was not very successful. He managed to replicate the natural bubbling spring water, which was considered healthy at that time. Now, carbonated water is made of pressurized carbon dioxide through water. Compared with the standard atmospheric pressure, the pressurization pressure increases the solubility and makes more carbon dioxide dissolve. When the bottle cap is opened, the pressure is released and the gas forms bubbles, thus forming unique bubbles.
Soda water is a carbonated drink, also called weak alkaline water or weak alkaline water. This is a drink in which carbon dioxide is pressed into pure drinking water and sweeteners and spices are added. It is weakly alkaline and can remove stains, such as coffee stains or silver stains on coffee cups.
Medically, external use can sterilize, and internal use can integrate the acid-base balance in the human body and change the acidic constitution. Soda water is an aqueous solution of sodium bicarbonate, which can be naturally formed, weak alkali effervescent tablets, soda effervescent tablets or artificially produced by machines.
References:
Encyclopedia of soda