Can dead sea crabs be eaten?

Mar 15, 2022 Source: Cainiu Health
Disease description:

Today, while playing at the seaside, I picked up a crab and brought it home. It died after I got home—can I still eat it?

Doctor's answer (1)
Dr. Wang Lei
Whether dead sea crabs are safe to eat depends on specific circumstances. If a sea crab dies and is properly stored without showing signs of spoilage, it may still be safe for consumption. However, if the crab has been dead for more than one day and shows signs of spoilage, it should not be eaten. This is primarily because, after death, sea crabs rapidly accumulate large amounts of histamine—a potent allergenic toxin—that can cause food poisoning upon ingestion.