But you can. But there may be preservatives in beef jerky, which is unsanitary. In fact, your teacher said to eat more beef, mainly to let you eat enough protein for your muscle training one day! So I suggest eating 6-7 boiled eggs every morning besides beef. Cook them carefully. That's enough. If you are not at ease, you can go to a drugstore or a health care product store to buy some protein powder. There must be, and protein can be supplemented. In addition, in addition to supplementing protein, other diets must be careful not to be picky about food! Also, calcium supplementation and VD are also important. I believe the drugstore has bought it. You can cook bone soup if you can. .