"FOR IMMEDIATE RELEASE - March 10, 2013 - COLUMBIA, S.C. - Diamond Pet Foods is voluntarily recalling limited production codes of Premium Edge Finicky Adult Cat Formula dry cat food, Premium Edge Senior Cat Hairball Management Formula dry cat food, Premium Edge Kitten Formula dry cat food, Diamond Naturals Kitten Formula dry cat food and 4health All Life Stages Cat Formula dry cat food. Tests conducted by the company indicated the products might have a low level of thiamine (Vitamin B1)."

http://www.fda.gov/Safety/Recalls/ucm343084.htm