Eating cicadas—fleshy insects that some people see as a tasty delicacy—is ill-advised for people allergic to seafood, the Food and Drug Administration (FDA) has warned. “Yep! We have to say it! Don’t eat #cicadas if you’re allergic to seafood as these insects share a family relation to shrimp and lobsters,” the agency said in a Wednesday tweet. The FDA’s post elicited mixed reactions, with some netizens questioning why anyone would willingly consume these—or any other—insects. But experts say eating insects, which are rich in protein, iron, and zinc, is not that unusual. “[It’s] really common around the world to eat insects seasonally, for their taste, for their nutritional importance,” Jessica Fanzo, a professor of food policy and ethics at Johns Hopkins University, told CBS in a recent interview. “And even here in the United States, some Native American populations consumed cicadas in times of hardship.” Eating cicadas is also increasingly …