The most poisonous parts of puffer fish are gonads, ovaries and liver, followed by kidneys, blood, eyes, gills and skin, and puffer fish meat contains less toxins. Tetrodotoxin is one of the most toxic non-protein toxins found in nature at present, and its toxicity is equivalent to 1250 times that of sodium cyanide.

Puffer, shad and swordfish are also called "Three Seasons of the Yangtze River". Under the premise of good internal organs and thorough heating, puffer fish can be eaten. Moreover, puffer fish contains a lot of high-quality protein, minerals, amino acids, unsaturated acids, carbohydrates and other nutrients, which have various nourishing effects on the body after eating.

Current situation of resources

After 10 years of development, puffer fish culture in China has begun to take shape. Breeding areas are mainly concentrated in coastal provinces such as Liaoning, Hebei, Shandong, Jiangsu and Guangdong 10. The main cultured species are fugu rubripes, fugu pseudoophthalmicus, fugu obscurus and fugu chrysanthemi.

In 2003, the national puffer fish culture output was 1 1545 tons, of which the freshwater culture and marine culture output were 1404 tons and10/ton respectively. Except for a small part of puffer fish eaten by domestic pilot units, 70%-80% of the products are exported to Japan and South Korea.

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