WEST DES MOINES, Iowa, 2017-May-09 — /EPR Retail News/ — Today (May 8, 2017), Hy-Vee, Inc. announced it has successfully transitioned 100 percent of its sushi to responsible sources. The supermarket chain guarantees that all sushi prepared and sold in its 244 Midwestern stores, including Hy-Vee Market Grille restaurants, will now contain seafood that is caught in…