Heirloom and heritage foods are derived from rare and endangered breeds of crops and livestock. The term heirloom refers to crop varieties, while the term heritage refers to animal breeds. Heritage breeds of livestock are those which were bred over time so that they are well-adapted to local environmental conditions to, for example, withstand local diseases and survive in harsh environmental conditions. Heritage breeds generally have slow growth rates and long productive life spans outdoors, making them well-suited for grazing and pasturing. However, the use of the term “heritage” does not guarantee animals were raised outdoors. There is no independent third party verification for this claim. (AWA)