31 brands of dog food have been pulled from shelves after it was discovered that the food contained traces of an euthanasia drug.

According to The Dallas Morning News, The J.M. Smucker Co. announced a voluntary recall of Gravy Train, Kibbles 'N Bits, Ol' Roy, Skippy and other brands of its other dog food brands after a TV investigation revealed that the food contained traces of pentobarbital, a sedative used as a euthanasia drug.

In a statement posted on the Gravy Train company website:

Veterinarians and animal nutrition specialists, as well as the FDA, have confirmed that extremely low levels of pentobarbital, like the levels referenced in this report, do not pose a threat to pet safety. However, the presence of this substance at any level is not acceptable to us and not up to our quality standards. We sincerely apologize for the concern this has caused. - statement posted on Gravy Train website

For a complete list of the products that have been recalled CLICK HERE or on the button below.