The HuffPost reports that on Friday, the U.S. Food and Drug Administration issued an advisory warning to pet owners about the possible presence of a barbiturate, commonly used to euthanize animals, in some canned dog food products. The J.M. Smucker Company is voluntarily withdrawing shipments of several of its dog food brands, including Gravy Train, Kibbles ’N Bits, Ol’ Roy and Skippy. The announcement comes after a Washington, D.C.