Morning fasting exercise fat-burning effect is generally not more significant than other times of exercise, may also cause hypoglycemia, it is not recommended to fasting in the morning for strenuous exercise. Experiments have proved that fasting exercise and non-fasting state exercise compared to the fat decomposition rate is basically similar, so the morning fasting exercise fat burning effect will not be more significant than other time exercise. And, in the morning fasting state body did not intake enough sugar, exercise will accelerate the decomposition of sugar, metabolism, very easy to cause hypoglycemia. Need for fat loss or weight loss of the crowd does not recommend the morning fasting state exercise, daily life to maintain a low-fat, low-sugar diet and reasonable, regular exercise, can help to play a role in weight loss. If discomfort occurs during exercise, it is recommended to consult a doctor in time.