Fish swim bladder, also known as Fish Maw, is a kind of precious medicine, which is similar to bird's nest with the following effects: it contains essential amino acids, such as glycine, alanine, proline, etc., which can quickly replenish the nutrients needed by the body. Fish bladder contains fish scale hard protein, which can effectively prevent tooth bleeding as well as purpura. Fish bladder belongs to a kind of tonic kidney and solid ingredients, for people who are weak in qi and blood, you can choose to eat.