Broccoli sold in bags at Walmart, the nation’s largest retailer, has been labeled as deadly by the FDA due to potential Listeria contamination. The broccoli, bearing the brand name Braga Fresh, was sold at Walmart stores in 20 states as Marketside Broccoli Florets.

A recall of broccoli sold at Walmart in 20 states has been upgraded to deadly, according to the U.S. Food and Drug Administration. Last year, California-based grocery producer Braga Fresh voluntarily issued a precautionary recall of 12-ounce washed and ready-to-eat Marketside Broccoli Florets sold at more than 1,