Influence. According to the inquiry of Sanjiu Yangshengtang, the nutrients of thick fish glue gradually dissolve in the colloid, which has a good nourishing effect, while the nutrients of thin fish glue can not be completely dissolved in the colloid, and the nourishing effect will be relatively weak. Gelatin is the dried product of swim bladder (the organ used by fish to adjust the ups and downs, also called fish bubble, which contains gas). It is rich in gum, hence the name fish glue.