Sandworms are expensive.

According to the Agricultural Encyclopedia, the price of sandworms is about 258 yuan/catty, while the price of sea sausage is about 93 yuan/catty, so the price of sandworms will be more expensive.

The main types of proteins contained in sandworms include earthworm hemoglobin, collagen, and water-soluble proteins. "Chinese Marine Materia Medica" records that both Lepidoptera and Lepidoptera are rich in amino acids, including 8 essential amino acids and 11 non-essential amino acids. "Chinese Materia Medica" records that the muscles of sandworms contain fructose 2,6-bisphosphate and the skin contains mucopolysaccharides. Sandworms are also rich in trace elements. "Chinese Marine Materia Medica" records that sandworms contain 14 kinds of nutritional elements such as zinc, copper, manganese, iron, magnesium, and calcium.