Shark meat may contain some toxic substances, so its meat cannot be eaten. Eating it will pose a threat to human health. Sharks are relatively large animals at the bottom of the sea, and they are very ferocious and bloody animals. Although it has a lot of meat, because it is special and does not have a urinary system, its excrement can only be discharged out of the body through its skin and muscles. During this process, there will always be excrement residues on its skin and muscles, and these excretions are actually poisonous. Although there won't be much residue each time, over time, there may be more, enough to cause harm to the human body.