In this paper, we consider purchase and transportation planning for food retailing in Japan, and formulate a linear programming problem where the profit of a food retailer is maximized. The food retailer deals with vegetables and fruits which are purchased at the central wholesale markets in several cities, and transports them by truck from each of the central wholesaler markets to the food retailer's storehouse. After solving the linear programming problem and examining the optimal solution, we conduct sensitivity analysis by changing some parameters from managerial viewpoints. Finally, we discuss outsourcing of the purchase operations to a distributer.