Japanese chef Shoichi Uchiyama has developed a line of sushi recipes that use insects, rather than fish, as the primary source of protein. He believes that carefully-selected insects are not only healthy and tasty, but can help feed a growing world population. From a 2008 article in The Daily Telegraph:
"In order to get 1 kg of beef, we have to raise cows on huge areas of land and give them many more kilos of fodder before they are ready to be slaughtered," he said. "Insects eat the things that humans don't and can be kept in much smaller spaces.
"Most importantly, insects are very nutritionally balanced, have little fat and are the perfect food source."
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How about a piece of Fugu?