It is normal that the color of chicken liver is different, and there is not much difference in nutrition. Generally, it is enough to choose something that has no odor, normal feel and firmness; The bile stains on it have been stored for a long time and should not be eaten again.
Healthy cooked chicken liver is red, khaki and gray, which are normal; Black is either stale.
Any liver is dark purple, abnormally swollen, with small white induration, or a part becomes hard and dry. , may be pathological liver, not suitable for purchase;