The pectoral muscle is a large muscle group that grows easily. Pay attention to eating high-protein foods, such as beef, eggs, milk, turkey and so on. But remember not to blindly pursue certain muscles, which will make the whole body very uncoordinated and unsightly. Fitness should be comprehensive and strong to become a handsome man. Besides, it's nonsense to recommend you to buy vegetable protein. Plant protein is useless for fitness and muscle building, but animal protein protein powder is useful. Plant protein is a little useful for improving immunity of people with poor immunity at most, but it has a great effect on women and is basically useless for fitness. Without a certain intensity of training, the pectoral muscles will not grow too fast. Adhere to reasonable exercise and correct diet, and the chest muscles will be fine in the first half of the year. I wish you success!