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Originally Posted by pstinard

Here's an article about this from Tuft's University Veterinary College:

A broken heart: Risk of heart disease in boutique or grain-free diets and exotic ingredients – Clinical Nutrition Service at Cummings School

Tuft's notes that it's not just grain free food that may be associated with cardiomyopathy in dogs, but exotic ingredients such as duck and lamb, and home cooked and raw diets as well. I'll include a few choice quotes below:

And finally, Tuft Vet Med's advice on how to handle this news (emphasis added):

thanks