First, alkaline food The main components of alkaline food (calcium, sodium, potassium, magnesium) are the four elements necessary for human movement and brain activity. All foods containing metal elements such as calcium, sodium, potassium, magnesium, etc. have a high total amount, and the gray matter eventually produced by metabolism in the body is alkaline, which is called alkaline food. For patients or sub-healthy people, it is meaningful to pay attention to the acidity and alkalinity of diet.
Second, acidic foods Acidic foods are based on the popular acidic constitution theory, rather than the classification of directly detecting the pH value of foods. That is, after food is digested, nitrogen, carbon, sulfur, chlorine, salt and so on are finally formed. It will form acidic free radicals and remain in the body, which is called acidic food. Such as cattle, sheep, pigs, chickens, ducks, fish, grains and so on. Acidic foods usually refer to foods rich in protein, fat and sugar. Because there are many elements such as sulfur (S), phosphorus (P) and chlorine (Cl), sulfuric acid, hydrochloric acid, phosphoric acid and lactic acid are produced after metabolism in human body. Up to now, the statements about acidic constitution and alkaline constitution have a higher probability of appearing in commercial journals than in academic journals, and most of them are questioning and criticizing. The concept of acid-base food is considered as hype, which is more meaningful than scientific research.
From the point of view of nutrition, the nutritional needs of the body are various. If you only eat alkaline food or acidic food, it will easily lead to unbalanced nutrition and affect the normal development of the body. Therefore, people should ensure a balanced diet and reasonably mix acidic food with alkaline food, which is of great help to health.