You can eat fish scales and generally scrape them off and throw them away as garbage. In fact, fish scales are rich in protein, fat and vitamins, as well as iron, zinc, calcium, various trace elements necessary for human body and colloid. Fish scales also contain a variety of unsaturated fatty acids, which can reduce the accumulation of cholesterol on the blood vessel wall and prevent arteriosclerosis, hypertension and heart disease. At present, a "fish scale diet" fever has begun to rise abroad. Fish scales can be used to make soup or fish scale jelly.

Clean the scraped fish scales, put them into a pot, add appropriate amount of water, boil them with slow fire 1 hour, and take out the fish scale residue when the fish scales turn white and curl until the soup is mushy. To make fish scale jelly, you should add less water. After boiling, add some chopped onions and garlic. After boiling again, add a little monosodium glutamate and mix well. Pour it into a container and cool it to form jelly. It will taste better if you add some sesame oil and peanut butter before eating.