Because the toxic component of puffer fish is tetrodotoxin, which is a neurotoxin, people can die if they eat 0.5 mg -3 mg of dolphin poison. The entrails, eyes, skin and blood of puffer fish are all toxic. The toxin is heat-resistant, and can not be destroyed until it reaches 65,438+0 hours at 65,438℃, nor can it be destroyed by salting or sun exposure. Therefore, eating puffer fish will be poisoned without special treatment.