1. Waist flower refers to a kind of kidney of animals, which is rich in vitamin B 12, B6, H, vitamin C complex, inositol, folic acid and pantothenic acid. It is rich in zinc, manganese and selenium, mellow in taste, smooth but not greasy, and high in protein.

2. The kidneys of pigs, dogs, sheep and cattle all have the effects of nourishing kidney qi and benefiting essence. For example, the kidney of sheep is warm, which can tonify kidney qi; Pig kidney is salty, which is helpful for kidney qi and bladder; Dog kidney has better effect on enhancing sexual function; Some animals' testicles can cure impotence, nocturnal emission and nocturnal emission.

3. The kidney of cattle and sheep is stronger than that of pigs, and the kidney of deer is the best. The contents of cholesterol and purine in animal kidneys are also high.

4. Chinese medicine pays attention to the theory of nourishing viscera, and it is recommended to eat animal kidneys once a week. Old people often take animal kidneys, which has a miraculous effect of strengthening the body and resisting aging. Through the kidneys of pigs, sheep, etc. And cut them into small pieces for cooking. However, people with "three highs" and middle-aged and elderly people are not suitable for eating.