Peer-reviewed veterinary case report
Undeclared animal DNA found in commercial dog elimination diets
By Horvath-Ungerboeck, Christa et al.·Published in Veterinary dermatology·2017·Department for Companion Animals and Horses·View original on PubMed →
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Original publication title: Detection of DNA from undeclared animal species in commercial elimination diets for dogs using PCR.
- Species:
- dog
Plain-English summary
A study found that many commercial dog foods labeled as "single protein" diets actually contained DNA from other animal sources, which could confuse diagnosis for dogs with food allergies. Out of 12 tested products, 9 contained undeclared animal DNA, with beef and pork being the most common contaminants. This means that if your dog is on an elimination diet to identify food allergies, these commercial diets might not be reliable. It's best to consult your veterinarian about safe and effective options for your dog's dietary needs.
People also search for: dog food allergies · elimination diet for dogs · best food for dog with allergies
Abstract
BACKGROUND: Elimination diets are the gold standard for the diagnosis of adverse food reactions (AFR). A broad variety of commercial diets are available containing either hydrolysed protein or novel ingredients which claim to be suitable for elimination diets. Contamination may be one factor accounting for the failure of commercial elimination diet trials. HYPOTHESIS/OBJECTIVES: To test commercial diets labelled as suitable for elimination diets for dogs, for DNA of animal origin other than that declared on the label. METHODS: Twelve commercial dry and tinned dog food products were investigated for DNA of animal origin (chicken, turkey, beef, mutton and pork) using PCR testing. RESULTS: In nine of 10 over-the-counter diets, DNA of one or more animal species other than declared on the label was identified. The DNA most frequently detected was derived from beef (n = 8) and pork (n = 6). Two hydrolysed diets only contained DNA of the declared animal source. CONCLUSIONS AND CLINICAL IMPORTANCE: Over-the-counter "single protein diets" or canned meat products cannot be recommended for the diagnosis of dogs with AFR because contamination may cause the elimination diet to fail.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/28247445/