Burger King has become the latest fast-food chain in the United States to add an alternative meat option to its menu, joining an industry-wide push to appeal to growing numbers of health- and environment-conscious consumers.
In early April, 59 of the fast-food giant's restaurants in the St. Louis area started offering the Impossible Whopper, a vegetarian version of its signature burger priced about a dollar higher than the original.
Following the successful test run, Burger King announced it would introduce the meatless option nationwide by the end of the year.