One of the big food stories of the last decade has been the mainstreaming of organic and natural foods, which for a time turned distributorUnited Natural Foods ( UNFI ) into a leading stock. Other stocks in the group, from commercial food products distributorSysco ( SYY ) to cigarette and snack wholesalerCore Mark ( CORE ), have faced a more difficult pricing environment. The company has a much more diverse product mix than a specialist like Green Mountain, but it has been stymied by, among other things, the Federal Reserve's strategic effort to tamp down the inflation rate.