National: McDonalds: "Yes, every patty is 100% real beef with no fillers, additives or preservatives." Burger King: "Our beef patties are made with 100% beef w

National: McDonalds: "Yes, every patty is 100% real beef with no fillers, additives or preservatives." Burger King: "Our beef patties are made with 100% beef with no fillers, no preservatives, no additives, no nonsense." Wendy's: "100% pure beef across the menu" Regional: Carls Jr: "100% Pure Ground Beef." Sonic: "100% pure beef patty" Jack in the Box: "100 percent beef"