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My cat prefers grain-free food. Is it truly bad for her heart?

Updated on September 23rd, 2025

Pet's info: Cat | Mixed Breed | Female | spayed | 17.19 lbs

Hello! Would like to ask about grain free cat foods. My cat prefer grain free foods, and doesn't want to eat the ones with grains. Her vet told me it is better if she eats the ones woth the grains beacause the grain free ones can hurt her heart. But, I also hear vets abroud that say it is not a problem. Would like to hear another opinion please, thanks.

1 Answer

Most Helpful Answer

Jessica Desrosiers

Answered By Jessica Desrosiers

Veterinary Technician

Published on March 27th, 2023

That's a hard question to answer without knowing Bazzel's health history. It's recommended to offer some grain in a diet to help prevent issues due to nutritional deficiencies, and, there have been some studies done on the effects of grain free diets on the heart — but the study was done in dogs, not cats.

If Bazzel refuses to eat anything that isn't grain free, I would let your vet know in case they'd like to monitor her more often for any nutritional deficiencies through regular bloodwork. Your vet may also recommend a supplement to help with any missing ingredients in the grain-free diet as well if it's not already added into it (many commercial diets already add supplements in to account for this).
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