The USDA has finally posted its rules for health claims on meats in the January 16 Federal Register.  After dealing with the 44,000 or so comments it received on the issue, the USDA defines what “naturally raised” means (for details, scroll through the endless responses to the comments until you get to page 3545).  In sum: no growth promoters, antibiotics, animal by-products, or fish by-products. This is a voluntary standard, but should help.