Researchers saw a three-fold increase in BPA levels in dogs who ate canned dog food for two weeks. They also saw changes in the dogs’ gut microbes.
Bisphenol A (BPA) is a widely used industrial chemical found in many household items, including resins used to line metal storage containers, such as food cans. The chemical can disrupt hormones and is linked to a range of health problems.
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“Bisphenol A is a prevalent endocrine-disrupting chemical found in canned foods and beverages,” says Cheryl Rosenfeld, an associate professor of biomedical sciences in the University of Missouri College of Veterinary Medicine and an investigator in the Bond Life Sciences Center. “We wanted to determine if short-term feeding of widely available commercial canned food could alter BPA concentrations in dogs. Thus, we assessed BPA contained within pet food cans.
“We also analyzed whether disturbances in bacteria found in the gut and metabolic changes could be associated with exposure to BPA from the canned food.”
Even BPA-free cans
Dog owners volunteered their healthy pets for the study. Blood and fecal samples were collected prior to the dogs being placed on one of two commonly used, commercial canned food diets for two weeks; one diet was presumed to be BPA-free.
Robert Backus, an associate professor in the veterinary medicine and surgery in the College of Veterinary Medicine, and other researchers on the team then analyzed the cans and the food contained in the cans for BPA levels and performed gut microbiome assessments.
“The dogs in the study did have minimal circulating BPA in the