Reason: The key factor of whether exercise can directly start to consume fat lies in glycogen storage in the body. When the glycogen stored in the human body is exhausted, the body will begin to use fat for energy supply.

Generally speaking, normal body glycogen will be consumed after half an hour of exercise, and then it will start to decompose fat, which is why many people say it takes more than 30 minutes to start losing weight.

So how many minutes of running is not the purpose, but the purpose is to consume glycogen in the body. In the morning, after a night's sleep, the glycogen in the body has been exhausted. Before eating, glycogen has not been supplemented, and running will directly use human fat for energy supply.

I hope I can help you, please adopt it, thank you! I wish you success in losing weight!