Green shell eggs are like a natural nutrition warehouse. After Kuroha silky fowl ate delicate and unique feeds such as corn, pepper seeds, platycodon grandiflorum peel and bean stalks, it not only made Kuroha silky fowl less susceptible to epidemic diseases, but also produced strong enrichment of vitamins, trace elements and minerals. Kuroha black-bone chicken not only absorbed a lot of these nutrients, but also transferred them into eggs, which made the eggs have high nutritional value. The main nutritional components of green-shell eggs such as zinc, selenium and iodine are 3-6 times higher than those of ordinary eggs, with high protein content 12.7% and low cholesterol content of 20%. At the same time, green-shell eggs are also rich in lecithin, cephalin, neurophospholipid, high-density lipoprotein, vitamins A, B, C, E and trace elements, among which the content of vitamin E is 2-3 times higher than that of ordinary eggs, and it is rich in human essential. What's more, the content of yolk cholesterol and whole egg cholesterol is about 40% lower than that of ordinary eggs. Green shell egg is an ideal natural health food with the characteristics of high vitamins, trace elements, amino acids, low cholesterol and low fat. Approved by the National Green Food Development Center as "green food", approved by the Ministry of Health as "health food", known as "ginseng in the egg", and even praised by foreign friends as "oriental god egg".