Practicing push-ups helps to increase the pectoral muscles and triceps brachii, and will not grow extra fat because of practicing push-ups. If you want to gain muscle strength, eat half and practice half. If you just do push-ups and go on a diet, you won't get stronger.

In terms of diet, you can eat more foods rich in protein. In addition, you should pay attention to the interval between exercise time and meal time of more than 30 minutes.