Frozen broccoli
Aphids are tiny bugs—they grow to just 2 to 5 millimeters in size—but they make up about 10 percent of the world’s consumed insects. Aphids are also “notorious for infesting” gardens and crop fields that grow produce like broccoli, Terro writes. The FDA allows up to 60 of these creatures per 100 grams of frozen broccoli. If you eat frozen broccoli regularly, Terro estimates you could be unintentionally eating over 1,600 aphids every year.