Yes, if the fish glue is well preserved, it can be preserved for decades. Fish glue is made from fish swim bladder, which contains a lot of collagen and mucopolysaccharide, as well as trace vitamins and minerals. People who often eat fish glue have the strength to do things, speak with confidence, have good skin, good spirit, sleep well, digest well, have no chapped lips, chapped hands and feet in winter, and recover quickly after delivery. Fish glue is neutral, neither cold nor dry, and it is the best tonic for confinement and recovery after surgery. Persist in eating regularly at ordinary times, and you can improve your physical fitness in an all-round way. Some fish gelatin also has outstanding effects, such as invigorating qi and blood, or significantly restoring respiratory diseases, or improving the digestion and absorption capacity of the stomach, or having a good effect on skin elasticity and toughness. But the main function of fish gelatin is to prevent diseases by strengthening human physique. You can find a company called Volkswagen Food Supplement in the search of WeChat, the official account of WeChat. This fish glue is an original product collected from abroad, with high cost performance. Taking fish glue from them can save a lot of money, and they will also teach you how to eat, what effect it has and how to preserve it. Usually, people who are weak or have just had surgery can choose to nourish the fish glue, and people with some physical problems can choose to adjust the fish glue accordingly.