Medical research believes that maintaining the body's acid-base balance plays an important role in maintaining health, and food can regulate the acid-base balance in the human body. Normal body fluids should be weakly alkaline (nearly neutral), and the blood PH value is between 7.35 and 7.45. Below 7.35, acidosis will occur, and above 7.45, alkalosis will occur. Under normal circumstances, the human body can adjust the acid-base balance through its own buffer system. Most healthy people will not suffer from acidosis or alkalosis even if they eat too much acidic or alkaline food in a short time.
People often don't pay attention to the collocation of acid-base food in daily life. China people have formed the eating habit of eating acidic food in their long-term eating habits. With the improvement of living standards, people eat more meat, fish, poultry and eggs, but less vegetables and fruits, which is easy to cause the accumulation of acidic substances in the blood, that is, blood acidification, which is called acidic constitution, which is not conducive to human health.