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Nutrition class

Ge Keyou: Can diet change the acid-base balance of human body

People's daily food is diverse and can be divided into several categories. Cereals such as rice and noodles, animal foods such as meat, fish, poultry and eggs, and some nuts are called "acidic foods". Because they contain more elements such as phosphorus, sulfur, and chlorine, the ash after combustion dissolves in water to form acidic solutions, which infers that the acid products possibly generated by their metabolism in the body are dominant. All kinds of vegetables, fruits, beans and milk are called "alkaline food". Because they contain more elements such as potassium, sodium, calcium, magnesium, etc., the ash after combustion will be dissolved in water to form alkaline solution, so it is inferred that the alkaline products that may be generated after metabolism in the body are dominant. However, this inference has not yet been scientifically confirmed. The metabolic process of the human body is extremely complex, and there are countless metabolites. It cannot be simply thought that eating acidic or alkaline food will affect the acidity or alkalinity of body fluids. In fact, no matter what water you drink or what food you eat, you can't change the acid-base balance of your body.

Yu Kang: How to drink water healthily

People can not eat for a few days, but can not drink water for a day. Water is too common to live without, but many people don't know how to drink water every day. Beauty lovers put forward that "good skin, drink eight glasses of water every day". In fact, we need not only "good skin", but also "good body". Is this "eight cups of water" enough? How big is the "eight cups"? If the concept is too vague, people will be confused. There is also a lot of water in vegetables and fruits. Does this water count as "eight cups of water"? How much water to drink? What kind of water is best to drink? purified water? mineral water? Soda water? Or the popular "concept water", such as alkaline water and electrolytic water? Undoubtedly, the best drink is plain water. A large number of studies have shown that the safety, purity and penetrability of boiled water are very good. After ingestion, the digestion and absorption of boiled water in the body are very good, and the cost of boiled water is very low. As long as the water source is clean, we hope everyone can use boiled water as a main source of drinks.

Wang Xingguo: How terrible is the first sip of milk

In order to strive to improve the rate of breastfeeding, that is, to let more babies eat breast milk instead of milk powder, gynecological and obstetric medical staff not only cannot promote milk powder to pregnant women, but also encourage, support and guide pregnant women to strive to achieve breastfeeding. However, this does not mean that feeding milk powder or feeding milk powder for the first time will lead to serious consequences. It does not mean that all newborn babies cannot be fed with milk powder. It does not mean that the first dose of milk powder will lead to addiction or dependence. In the first few days of the baby's birth, the parturient, especially the parturient with cesarean section, often has no milk or very little milk. For most healthy babies, they can survive difficult days without feeding any food or water. For some special cases, such as premature infants, mothers with gestational diabetes Apgar's score is low and must be treated differently. At this time, in order to stabilize the baby's blood sugar and overall state and avoid accidents, it is reasonable and consistent with the practice that the medical staff requires the baby to feed glucose water and a small amount of formula milk several times. Under normal circumstances, the formula provided by the hospital should not display brand information, or let the puerpera prepare their own milk powder.