80% of the world population eats insects intentionally; 100% eat insects unintentionally.
Consuming insects is unavoidable because insects contaminate many food items. Even under the careful eye of the home gardener, Drosophila flies will lay eggs on ripening tomatoes. These eggs often hatch before the tomato is eaten and tiny Drosophila larvae are invariably consumed. It is not practical to grow tomatoes and exclude insects (How would they be pollinated?). People have…
Source: Living With Insects Blog