Eat two meals a day, and don't eat greasy food, fried food, cold drinks or drinks. Run three times a week. First, take a quick walk for three minutes to warm up, and then run five kilometers, which takes about 40 minutes. After running, you will be hungry. Eat two bananas and two eggs. Then remember not to eat for an hour and a half, and don't eat anything after 8 pm except water. Do what you can. This is how I exercise.