At present, species with edible value in the world include grape snails (also known as apple snails, French snails, large loose snails), brown cloud agate snails (also known as apple snails), French snails, brown cloud agate ( Also known as African snail), small gray snail, etc. The largest snail is brown cloud agate, commonly known as Dongfeng snail and cabbage snail. The adult snail weighs 40 to 300 grams, and the largest one weighs about 390 grams. The white jade snail is a new mutant species carefully selected from the brown cloud agate snail.

1. Food value: Snails are also called wild snails. Snails are used both as medicine and food. Snail meat is a high-protein, low-fat food. According to analysis, 100 grams of fresh snail meat contains 12.5 grams of protein. Each 100 grams of dried snail meat contains 60.42 grams of protein (black snail), 3.85 grams of fat, and 18 kinds of amino acids such as lysine and glutamic acid. According to research, snail meat is easy to digest, and the protein contained in it is easy for the body to absorb and utilize. It is a rare nutritional product for patients with arteriosclerosis, hypertension and coronary heart disease.

2. Medicinal value: Dried snail is a traditional Chinese medicine, named Li Niu. It is salty in taste, cold in nature, slightly poisonous, and has the effects of clearing away heat, detoxifying, reducing swelling, softening asthma, and relieving hernia. It is mainly used to treat children with umbilical cord, difficulty in urination, bronchial asthma, laryngeal obstruction, high blood pressure, swollen hemorrhoids, etc. In addition, digestive enzymes extracted from snails can be used as medicine. According to analysis, the digestive juice of snails contains cellulase, pectinase, lactase and other enzymes. In recent years, China has also successfully extracted a lectin from snails.