Dr. Ankur Jain Gastroenterologist and associate clinical professor, John A. Burns School of Medicine How worried should we be about the dangers of microplastics? Should we be revamping our habits? Scientists are finding that microplastics are everywhere—in our food chain, air, clothing, and even our bodies. “Recent research has shown that adults are likely ingesting the equivalent of about one credit card of plastic a week,” Dr. Ankur Jain says. This could negatively impact our health.