Published by: Ingrid King. Last Updated on: August 25, 2023 by Crystal Uys


Note: This article covers a recall that occurred in 2013. For up-to-date information on current pet food recalls, please visit the FDA’s recall website.

In 2013, Diamond Pet Foods voluntarily recalled 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). There have been no complaints regarding thiamine levels, or any other health issues, related to these products.  In association with this voluntary recall, Diamond Pet Foods has tested all other Diamond brands for thiamine deficiency to ensure the safety of the cat food it manufactures.  No other product manufactured by Diamond Pet Foods is involved in this recall.

Only products with the following Best By dates and Production Codes are included in the voluntary recall.  Further distribution of these affected production codes has occurred through online sales.  It is best to check the production code to determine if the product has been recalled or not.


“At Diamond Pet Foods, we have a process where we continuously test our products, and this process allowed us to find the undesired levels of thiamine in some of our cat formulas. Our food safety protocols are designed to provide safe food on a daily basis,” says Michele Evans, Ph.D., Diamond Pet Foods Executive Director of Food Safety and Quality Assurance.  “In the event an error occurs, we have the data to quickly alert pet owners, giving them the confidence they demand of a pet food manufacturer.”

Pet owners who are unsure if the product they purchased is included in the recall, or who would like a replacement product or a refund, may contact the Pet Food Information Center at 1-888-965-6131, Sunday through Saturday, 8 a.m.– 6 p.m. EST.

Cats fed products with the previously listed Production Codes and Best By dates exclusively for several weeks may be at risk for developing a thiamine deficiency.  Thiamine is essential for cats in maintaining normal nervous system function.  Symptoms of thiamine deficiency displayed by an affected cat can be gastrointestinal or neurological in nature.  Early signs of thiamine deficiency may include decreased appetite, salivation, vomiting, and weight loss.  In advanced cases, Neurological signs can develop, which may include ventriflexion (bending towards the floor) of the neck, wobbly walking, falling, circling, and seizures.  Pet owners should contact their veterinarians immediately if a cat is displaying any of these signs.  If treated promptly, thiamine deficiency typically is reversible.

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