Burger King is being hit with a federal lawsuit for inflating the sizes of their menu items in advertising campaigns and promo images, with docs claiming that every food item for sale at the chain is “materially overstated,” when being advertised. This image, which uses Burger King’s signature Whopper as an example, was one of many pieces of evidence gathered for the class action lawsuit first filed by South Florida lawyer Anthony Russo against Burger King, and their parent company Restaurant Brands International. Russo said he has evidence of BK beginning to inflate its portion sizes in the f…