Exercise is an excellent way to lose weight and burn calories. But if you are going to eat before you exercise, you decrease fat burning potential. That is why in the army, they are turning morning before eating anything to maximize the burning of fat.
The exercise generally recommended to lose weight in the fastest time is running. But it can be hard on the knees if you run on the sidewalk. Thus, running on grass and sand, if you live by the beach. In fact running on the beach is a great way to lose weight quickly, because it is extra resistance.
If you’re starting to jog, then I recommend jogging Monday through Wednesday and Friday. This allows you to rest your body for optimal result. And run early in the morning or evening to avoid the heat.