The first effect of beef can improve the immunity of the body, because the protein and amino acids contained in beef are rich and can be easily absorbed and used by the body, which is an important substance necessary for growth and development and repair of cellular tissues. The second effect of beef is the prevention of iron deficiency anemia, because the iron contained in beef is bivalent heme iron, with high content and high absorption rate, which can play a role in the prevention of iron deficiency anemia. The third effect of beef, to accelerate the body’s metabolism, eliminate fatigue. Because beef contains relatively rich B vitamins, for the body’s metabolism can play a positive role in eliminating fatigue will be very obvious. The contraindications of beef, mainly for patients with kidney dysfunction, should properly control the intake of beef, otherwise it may cause an excess of protein intake and increase the burden on the kidneys.