Protein's intake is not enough. Continued fitness will thin muscles, and people will lose weight in the long run. Because the raw materials for muscle synthesis are insufficient at this time, some muscles will be broken down during exercise. So you'd better take enough protein. Besides daily diet, you can also drink some protein powder within two hours after training. Generally speaking, it is better to choose foreign brands for protein powder, such as Muscle Technology and Oportmont. You can buy it at PQfitness of a treasure.