Why does fitness grow fat, thin people, and eat too much after fitness?

It is easier for the body to absorb food after exercise, but it does not necessarily lead to weight gain. Exercise consumes a lot of muscle glycogen, and in order to restore muscle glycogen, you need to consume a lot of carbohydrates. However, this does not mean that it will lead to weight gain, but only muscle gain. Specific weight gain is related to food intake.