Chinese medicine says "nourishing yin in autumn and winter". Eating Ejiao in autumn and winter has been a custom in China for thousands of years. Tonifying in autumn and winter is mainly to replenish yin and blood, even for people with qi deficiency and yang deficiency, it should be carried out on the basis of nourishing yin and blood, so eating Ejiao in autumn and winter is tonic, because when you simply use qi to improve your body function, you will hollow out the foundation of your body, which will make your body more and more empty. Dong 'e Ejiao, a kind of Ejiao, has a light taste, does not get angry, and enters the kidney meridian. The kidney of TCM is not the kidney of urinary system of western medicine, but the kidney of TCM refers to the foundation of life. Supplementing Dong 'e Ejiao is an inevitable life process to fundamentally replenish deficiency, so that the replenished body can withstand consumption like dense and solid mahogany, and will not be easily deformed, thus resisting external evils and getting sick less. Dong 'e Ejiao has the effects of enriching blood, stopping bleeding, nourishing yin and moistening lung. More importantly, Ejiao is rich in gelatin, protein, calcium, potassium and other trace elements. Protein can produce more than 20 kinds of amino acids after hydrolysis, which is not only an important substance for nourishing human body, but also has the effects of anti-aging and prolonging life. Replenish qi and blood in autumn to reduce the consumption in summer, reserve energy for the coming winter, and avoid various diseases caused by low body resistance.