Sugar provides energy very quickly, and sugar in exercise muscles can be converted into energy more than three times faster than fat. Secondly, sugar burns in the body, eventually producing carbon dioxide and water. Carbon dioxide is easily exhaled from the respiratory tract, and water is very useful to the body. But burning fat or protein will eventually produce some metabolic wastes.

These wastes are acidic, which will increase the acidity of body fluids and cause poisoning in the body, which is called "metabolic acidosis" in medicine; The internal environment of human body should be neutral and alkaline. Acidified body is easy to get tired during exercise, but it is difficult to recover after fatigue. In addition, when people exercise, the demand for oxygen will increase dramatically.

Extended data:

The effects of sugar on exercise are as follows:

Sugar consumes less oxygen when burning, and it can be oxidized without oxygen for a short time under the condition of hypoxia, providing energy for the body, thus alleviating the pain of hypoxia for the body and feeling more relaxed during exercise. The staple food in the final diet contains 70-75% sugar, which will soon enter the small intestine through the stomach after intake.

Will not stay in the stomach for a long time, will not cause stomach discomfort during exercise, and sugar is easy to digest and absorb in the small intestine. The advantages of sugar as a source of exercise energy can show the importance of sugar in food, but athletes and people engaged in fitness often have the problem of insufficient sugar intake, ranging from 1/3 to 1/2.

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