Chang Cuiqing, a nutritionist at the Institute of Sports Medicine of Peking University Third Hospital, said that chocolate is an ideal energy and nutritional supplement for travel and exercise. She said: "Before exercise, the energy supplied by chocolate makes the blood sugar in muscles and liver in the most saturated state, which is conducive to improving sports performance;" After exercise, chocolate can also replenish the energy consumed by human body during exercise in time. "Chang Cuiqing told reporters that from the perspective of sports, chocolate can satisfy the body energy in the shortest time because of its large energy consumption and long exercise time.

After exercise, the most important thing is to supplement sugar. Chocolate can keep blood sugar stable, relieve hypoglycemia, promote recovery and improve exercise ability, all of which are inseparable from "sugar supplementation". What we consume during exercise is muscle glycogen, that is, glycogen stored in muscle, and then liver glycogen. We only use fat when glycogen is exhausted, so when your glycogen is completely consumed, your body will produce a lot of lactic acid, and you will feel tired at this time. Therefore, if you supplement sugar during or before exercise, you can delay the appearance of fatigue.

Chocolate tip:

Polyphenols in chocolate are powerful antioxidants. It can inhibit the oxidation of low-density lipoprotein cholesterol (low-density lipoprotein cholesterol, that is, "bad cholesterol" is "impurity" in blood). Can cause arteriosclerosis, coronary heart disease, myocardial infarction and other diseases. Polyphenols in chocolate can also prolong the action time of other antioxidants in human body, such as vitamin E and vitamin C, and can promote vasodilation, reduce inflammatory reaction and reduce thrombosis, thus playing a role in preventing cardiovascular diseases.