Mutton, hot and sweet, is rich in protein, fat, phosphorus, vitamin B 1, vitamin B2, nicotinic acid and sterols. It has the effects of invigorating qi and nourishing blood, warming middle warmer and tonifying kidney, stimulating appetite and promoting lactation, and treating leukorrhagia, and has certain curative effects on deficiency of qi and blood, fatigue and emaciation, weakness of spleen and stomach, abdominal pain, anorexia or nausea, kidney deficiency and yang failure, soreness of waist and knees, frequent micturition and impotence. However, it should be noted that mutton is hot, although it is a good tonic in winter, but it is not suitable for people with phlegm fire, damp heat, pathogenic heat and early epidemic disease.