2, although the nutritional health effects of Colla Corii Asini is very good, but there is a lot to pay attention to when taking. For the weak friends to eat twice a day, once eat a piece is very suitable. For children, eat a small piece before going to bed also has a very good health care effect, but it should be noted that children under three years old are not recommended to take Colla Corii Asini. If the Colla Corii Asini is only used as a daily health care, then friends eat a piece of it every day is very suitable.