For the week of July 12, shares of The Chefs' Warehouse (NASDAQ: CHEF), Shake Shack (NYSE: SHAK), and United Natural Foods (NYSE: UNFI) were down 10.7%, 13.6%, and 9.2%, respectively, as of 2:15 p.m. EDT on Thursday. What happened On Tuesday, the June consumer price index report fueled more worries about inflation, which could hit restaurants just as they are preparing for higher demand coming out of the pandemic. Cost inflation in meat could be problematic for near-term margins at The Chefs' Warehouse, which sells center-of-the-plate products, such as beef, poultry, and seafood.