Sharks existed on the earth as early as 300 million years ago when the dinosaurs appeared. It has been more than 400 million years ago and they have barely changed in nearly 100 million years. Sharks, known in the ancient times as sharks, shark sharks, and sharks, were giant beasts in the ocean, so they were known as "wolf in the sea."
Shark is one of the marine fish that can be eaten. It is a meat-rich, nutritious and especially delicious shark fin. It is widely recognized as a valuable food. The shark's fin dishes are soft and smooth, soft and refreshing, and are famous foods such as bird's nest and bear's paw. Each 100 grams of shark meat contains 0.7 grams of lipids, 21.3 grams of protein, and a variety of inorganic salts and vitamins. Each 100 grams of sharkskin contains 11 grams of sugar, 67 grams of protein, and 16.5 milligrams of iron. Scientists also found that among all animals, sharks are the only animals that will not be carcinogenic and do not even infect bacteria and viruses. Shark products have a certain role in inhibiting cancer cells in cancer patients, so sharks are also known as "anti-cancer fish."
Modern studies have found that the cartilage tissue of sharks contains a substance that is similar to the undiscovered components found in bovine soft tissues. It can effectively inhibit the growth and development of cancer cells, and its effect is 100,000 times that of similar substances in cattle. Sharks also contain a substance that can delay the growth of blood vessels in solid tumors, which in turn can cause tumors to lose blood nourishment and inhibit tumor growth. Shark cartilage is often used to treat tumors. The shark’s liver also contains a lipid substance that enhances cancer resistance. Scientists in the United States have extracted a substance called coenzyme Q10 from the shark's liver to treat some elderly cancer patients so that the disease can be alleviated. Obviously improved.