Dr. Karri McCreary, co-owner of the Greenville Animal Hospital, says studies show that grain-free pet food -- which has gained popularity in recent years -- may actually cause serious health problems for dogs and cats.
Dr. Karri McCreary, co-owner of the Greenville Animal Hospital, says studies show that grain-free pet food -- which has gained popularity in recent years -- may actually cause serious health problems for dogs and cats.