A chemical found in yoga mats could be in a lot of grocery store food items, according to a new report.

Environmental Working Group (EWG) released a list of 500 foods that may contain azodicarbonamide (ADA), a foaming agent.

Subway to Stop Using a Chemical in Its Bread

ADA, which is also found in yoga mats and flip flops, has been in the news lately because Subway announced it would be phasing it out of bread sold in U.S. stores.

Archer Farms, Pillsbury and Betty Crocker may contain the chemical.

Expired Food to Get New Shelf Life at Massachusetts Grocery Store

Dr. David Samadi said the chemical preserves bread and appears to be used for business purposes. He said it’s banned in Europe and Australia.

ADA can reportedly cause respiratory issues and skin irritation if consumed in large doses.