Why can't you buy cow lungs?
                                
                                
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                                    4 min read                                
                            
                                In 1971, the U.S. Department of Agriculture (USDA) officially banned the sale of livestock lungs for human food, a regulation that has perplexed many offal enthusiasts and home cooks ever since. The ban was the result of food safety concerns rather than a simple cultural aversion to organ meat.