Gelidium, also known as sea jelly, red silk, and phoenix, is a kind of red algae, belonging to the genus Rhodophyta, Geliliaceae, and Gelidium. It is distributed throughout my country's Yellow Sea, East China Sea and along the coast of Taiwan. It is completely transparent, like jelly, with a refreshing and crisp taste. It can be mixed with cold dishes or made into jelly. It is the main raw material for making agar gel (commonly known as agar, jelly).

Gellidium is rich in minerals and multivitamins, especially the alginate substances it contains, which have antihypertensive effects, and the starchy sulfate esters they contain are polysaccharides, which have antihypertensive effects. Lipid function, it has certain preventive and therapeutic effects on hypertension and hyperlipidemia. Traditional Chinese medicine believes that Gelidium can clear the lungs and resolve phlegm, clear away heat and dampness, nourish yin and reduce fire, cool blood and stop bleeding, and has the effect of relieving heat. Gelili is a relatively cold algae food, so people with spleen and stomach deficiency and kidney yang deficiency should be cautious. Food.