Poultry
In some countries, geese and ducks are force-fed to produce livers with an exceptionally high fat content for the production of "foie gras". Over 75% of world production of this product occurs in France, with lesser industries in Hungary and Bulgaria and a growing production in China. "Foie gras" is considered a luxury in many parts of the world, but the process of feeding the birds in this way is banned in many countries on animal welfare grounds.
Foie gras controversy
In 2011, the Animal Legal Defense Fund filed a legal petition with the U.S. Department of Agriculture (USDA), urging that foie gras bear a consumer warning label stating "NOTICE: Foie gras products are derived from diseased birds." ALDF argues that because the USDA is responsible for ensuring that poultry products are wholesome and for approving only products from healthy animals, stamping foie gras products with the USDA seal without disclosing that those products are derived from diseased birds misleads consumers, contravening the Poultry Products Inspection Act. Regularly eating foie gras can harm the health of predisposed people. Patients with Alzheimer's, rheumatoid arthritis, type 2 diabetes and other amyloid-related diseases should not eat it.