At a time when consumers are becoming more vigilant about the use of antibiotics in the meat they consume, industry watchdogs are ready to call out businesses that aren’t sufficiently vetting their suppliers. In a newly released report card that rates 25 burger chains for the degree of antibiotic use in their meat sources, all but three businesses received failing grades (and one of those three received a D-minus). Restaurant Business reports that the Chain Reaction report, which was authored by the U.S. Public Interest Group and co-authored by Consumers Union, the National Resources Defense Council and other public interest groups, found that most chains lack meaningful policies on antibiotic use in their beef supply chains. Shake Shack and Burger Fi came out on top, scoring A’s for sourcing beef without antibiotics. If guests asked you about your beef supply chain, what would you say?