You can eat a small amount of something before exercise, either half an hour or an hour before exercise.
Eat a small amount of food before exercise, can for the body to replenish energy, water, sugar and other nutrients, to prevent the phenomenon of hypoglycemia in the process of exercise, eat something exercise also feel more powerful body. However, it is not suitable to eat too much before exercise, in case the burden on the stomach and intestines during exercise is heavy, but will cause vomiting, nausea and other uncomfortable symptoms.
It is recommended that if you want to eat before exercise, you can choose to do it half an hour or an hour before exercise.
After exercise, if you feel hungry and have hypoglycemia, you can also eat immediately to replenish the energy needed.