Foie gras production through forced feeding (gavage) of ducks and geese has been banned in over 20 countries based on scientific welfare assessments concluding that the practice causes unavoidable suffering.
Gavage force-feeding causes esophageal injury and liver disease that constitutes unavoidable suffering according to every scientific welfare assessment that has examined the practice. The liver enlarges to ten times its normal size — a pathological state, not merely enhanced food consumption. The behavioral avoidance of feeders by gavage birds provides direct evidence that the procedure is aversive. The number of countries and jurisdictions that have banned foie gras based on welfare science reflects a clear scientific consensus.