Fresh grass carp liver can be eaten, has rich nutritional value; placed too long grass carp liver can not be eaten, in order to avoid gastrointestinal reaction. Fresh grass carp liver is rich in vitamin A and vitamin D, which can promote the body’s absorption of calcium, can also supplement vitamin A, but also supplement protein, moderate consumption of fresh grass carp liver can replenish the nutrients needed by the body. Grass carp liver that has been placed for too long is prone to deterioration and may irritate the gastrointestinal tract after consumption, resulting in gastrointestinal symptoms such as nausea, vomiting, abdominal pain, diarrhea, etc., and in serious cases, it may even cause food poisoning. It is recommended that when consuming grass carp liver, you should choose fresh grass carp liver, while paying attention to moderate consumption, so as not to consume too much fat and calories leading to obesity and other health risks, grass carp liver should not be consumed by those who are allergic to grass carp.