Hyperthyroidism In Cats: Is Fish-Flavored Food To Blame?

Hyperthyroidism In Cats: Is Fish-Flavored Food To Blame?

It is unknown what exactly causes hyperthyroidism in cats. Researchers originally suggested that hyperthyroidism was caused by environmental pollutants, specifically polychlorinated biphenyls (PCB) and polybrominated diphenyl ethers (PBDE), but a recent study shows that fish-flavored cat food may be to blame.

Hyperthyroidism is a hormonal disorder that can cause aggression, hyperactivity, vomiting, and weight loss, just to name a few symptoms.

Hazuki Mizukawa, Kei Nomiyama, and their colleagues from the American Chemical Society ran a study that simulated how cats process various toxic compounds. They also tested cat foods and cat blood samples.

The research team found byproducts of PCB and PBDE (which are also toxic) in high amounts in the blood from cats who had eaten fish-flavored cat food. Their findings suggest that the byproducts of PCB and PBDE can be found naturally in fish, which means environmental pollutants may not be the biggest possible factor in hyperthyroidism.

More research needs to be done to clarify whether or not the byproducts of PCB and PBDE are naturally found in fish.

Does your cat have hyperthyroidism? Does he/she eat fish-flavored food? Let me know in the comments, and then share this story with your friends and family.

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Well, hello! I'm Carissa Myers. I've dedicated my life to helping pet parents care for their fur babies through hands-on work and written guides, and I'm so blessed to have the opportunity to do what I love!