A panel of experts recently discussed how insects could be used as a food source for a world population estimated to reach 8 billion by 2025. Guests were then treated to a taste test of insect cuisine. Insects from more than 1,900 species form parts of the diets of roughly 2 billion people worldwide, according to a study by the Food and Agriculture Organization of the United Nations. The study found that beetles are the most widely consumed insect, accounting for nearly a third of insects eaten. But caterpillars, bees, wasps and crickets also make up a significant portion of people’s diets.