Silk-bone chickens are also called black-bone chickens. Not only are their beaks, eyes, and feet black, but their skin, muscles, bones, and most of their internal organs are also black. In terms of nutritional value, the nutrition of black-bone chicken is much higher than that of ordinary chicken, and the taste is also very tender. As for its medicinal and therapeutic effects, it is incomparable to ordinary chickens, and it is known as a "precious therapeutic bird".

According to the "Chinese Food Composition Table", the protein content of black-bone chicken is slightly higher than that of ordinary chicken, while the fat content is only 1/4 of ordinary chicken. It is a veritable high-protein and low-fat food. In addition, the content of vitamin B2, niacin, vitamin E, calcium, magnesium, iron, zinc and other nutrients in black-bone chicken is much higher than that of ordinary chicken. Moreover, black-bone chicken contains more types of amino acids than ordinary chicken. Ordinary chicken nourishes "qi deficiency", which means it is suitable for people with low energy and fatigue; while black-bone chicken mainly nourishes "yin deficiency", which means it is suitable for people with excessive internal heat (excessive fire), night sweats, red tongue with less coating, and poor spleen and stomach. . Black-bone chicken is sweet, pungent and non-toxic, and has significant curative effect on gynecological diseases. For people who are thin or have internal heat, it can nourish weakness, nourish yin and strengthen yang, nourish the liver and kidneys, and nourish qi and blood. Eating it with jujube and donkey-hide gelatin can help pregnant women and most women regulate menstruation and activate blood circulation. It should be noted that people who lack appetite and have thick tongue coating should not eat too much black-bone chicken.

Generally speaking, men should use hens and women should use roosters. The appropriate method is to cook and stew. The best partner is chicken and white fungus, black fungus, yam, red dates, winter and summer grass, lotus seeds, gastrodia elata, gorgon fruit and other foods. It can improve physiological functions, resist decline, weakness, and aging. , the effect of prolonging life.