Food prices in the U.K. to head higher

• Premier Foods (OTCPK:PFODF) is in talks to raise prices with major retail customers such as Tesco (OTCPK:TSCDF, OTCPK:TSCDY), Sainsbury (OTCQX:JSNSF, OTCQX:JSAIY) and Wal-Mart's Asda.
• The company says higher commodity costs and a weak pound have created the need for the hike in prices.
• Unilever rolled out prices increases in the U.K. last fall.