1, beef. The significance of beef to bodybuilders is self-evident. Lean beef is low in fat and contains sarcosine, which is the fuel for skeletal muscle growth and strength improvement. Vitamin B6 contained in beef is helpful for physical recovery after strength training.

2. fish. Fish is a typical food with high protein and low fat. Zinc contained in fish is an important trace element, which is beneficial to improving human immunity and plays an important role in the growth and development of muscles, bones and sexual organs.