When the temperature of the chicken begins to decrease to a certain environment, the space between the meat and the skin, you will find a layer of jelly transparent material, this layer is called collagen, which itself is the connective tissue in the skin, the function is to provide elasticity.
Many parts of the chicken have greater safety concerns and should be consumed in smaller quantities or even not eaten. First, chicken skin has more fat and higher cholesterol and is best eaten sparingly. Secondly, the neck of the chicken is a part of the blood vessels and lymph glands are concentrated, occasionally eat some of the gluttony is not a problem, eat the best to remove the skin. Once again, the lymph of the chicken's butt is hiding germs, viruses and other harmful substances, so it is not recommended to eat.
Expanded Information
Chicken soup is far less nutritious than chicken meat. In the eyes of many people, drinking chicken soup is the most complementary, the rest of the chicken nutrition has been stewed into the soup. Dr. Lily Rui, Department of Food and Nutrition, Academy of Military Medical Sciences, pointed out that the nutrition of chicken after stewing soup is much higher than chicken soup. Chicken provides us with the main nutrients are protein, as well as fat, vitamins and minerals such as calcium.
In the process of stewing chicken, a large number of fresh flavor substances will be dissolved into the soup, so the chicken soup will become delicious, but protein, vitamins and calcium and other nutrients only a small part of the dissolved in the soup. Some data show that the protein content per 100 grams of chicken meat and chicken soup is 25.1 grams and 1.37 grams, respectively.
People's Daily News - 6 truths about eating chicken you must not know