The difference between jelly tube and cod glue is that cod glue belongs to collagen, which is reddish after foaming and rich in collagen. Rare and precious, the market price is higher. Flower glue belongs to the organs of fish, and it is white after soaking. It is also rich in protein, its nutritional value is not as good as cod glue, and its price is relatively low, so it is very common in the market. In short, there are essential differences between them, and they are both very popular nutrients. The main components of fish glue are advanced collagen, vitamins and trace elements such as calcium, zinc, iron and selenium. Its protein content is as high as 84.2%, and its fat is only 0.2%. It is an ideal food with high protein and low fat. Is a raw material for human body to supplement and synthesize protein, and is easy to absorb and utilize.