Costco often serves as the go-to place to stock up on large-scale grocery items. You can find family-size tubs of hummus, great deals on produce, and even quality cereal. What youll no longer find is foie gras, or fatty duck liver. Produced by fattening ducks and geese by shoving feeding tubes down their throats and over-filling them with food, foie gras has caused states and cities to want to remove the controversial meat product, with a complete ban going into effect in California in 2012. Costcos food buyer Mike Dorpat said that because ducks necks are so small, he couldnt ensure whether they were treated properly in the feeding process. Way to go, Costco!