If you tour Xiamen, a city in East China's Fujian Province, you may come across tusun jelly for sale. However, many people might wince after learning about its ingredients. Tusun jelly is made from sipunculid, a species of sea worm found in muddy seabeds. When these sea worms are delicately cooked, their pectin mixes with the water, transforming into a jelly-like substance.
