1, fish scales, which contain a variety of nutrients and health-care substances, have set off a "fish scale dietotherapy fever" abroad. Fish scales, especially those of big fish, are a good thing. When boiled into jelly, they can supplement calcium, beautify the face, strengthen the body, strengthen the brain and prevent aging.
2. Fish scales account for 2% ~ 3% of fish weight. Scales are transparent in appearance, like petals, and the edges are slightly curled, white luster, slightly fishy, firm and soft. The water content of fish scales is16.4% ~17.8%, with an average of 17.5%.