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Is higher fat dog food okay for my dog prone to heart disease?

Updated on September 23rd, 2025

Pet's info: Dog | Cavalier King Charles Spaniel | Female | spayed | 5 years old | 17 lbs

I am planning to switch my dog from natural balance to Nulo dog food. Natural Balance has 20% protein and 10% fat. Nulo has 30% protein and 17% fat. Is this ok? Is the higher fat something to be worried about with her predisposition to heart disease? Of course I will have to feed slightly less of the Nulo than Natural Balance because Nulo has more calories. I frankly feel like I can trust the brand Nulo more than I can Natural Balance. Please explain your answer. She's a 5 year old Cavalier.

1 Answer

Most Helpful Answer

Angel Alvarado, LVT

Answered By Angel Alvarado, LVT

Licensed Veterinary Technician

Published on June 28th, 2017

It will make little difference in the long run. Dogs rarely develop heart disease due to a high fat diet like humans do. The heart disease a Cavalier is predisposed to stems from a failure or weakening of the heart valves that control blood flow through the heart.
As long as Chloe is active and not overweight, the diet change is fine. Switch food gradually to avoid GI upset.
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