09/20/2026
The data is there, so why are veterinarians and veterinary cardiologists STILL telling pet parents to feed grain-inclusive diets to prevent heart disease?!
It’s exhausting that we’re still having conversations with that parents about the misinformation they continue to receive. Do your research and empower yourself so that you have the knowledge and the confidence to speak to veterinary professionals and advocate for your dog.
Just know when you are feeding a food that has fillers whether they are grains or legumes, those fillers are lowering the volume of meat and amino acids needed to maintain stable heart health. However this conversation is much bigger than just grain-free or grain-inclusive foods.
And if your dog is predisposed to heart disease, there are so many things you can do that’s backed by science to support your animal and hopefully prolong or possibly prevent heart problems from happening.
🚨 A HUGE NEW STUDY IS CHALLENGING WHAT PET PARENTS HAVE BEEN TOLD ABOUT GRAIN-FREE DOG FOOD.
A 2026 Veterinary Medicine and Science study analyzed Dog Aging Project data from 47,000+ dogs and found grain-free diets were NOT associated with increased odds of developing new heart problems.
🤯 More than HALF of owners who reported feeding grain-free were WRONG when researchers checked the ingredients. Foods that sounded grain-free actually contained rice, corn, wheat, barley or oats.
Researchers also followed 7,113 dogs for two years. Dogs that switched to grain-free had FEWER newly reported heart diagnoses than dogs that never ate grain-free, while dogs consistently eating grain-free showed no significant difference.
Both grain-free AND grain-containing foods can contribute to nutritional DCM. So can poorly formulated raw and homemade diets.
Peas, lentils and potatoes aren’t inherently “bad,” and adding grains does NOT magically make food cardioprotective—there’s ZERO taurine in grains!
The bigger question is whether the finished food provides enough bioavailable protein and essential amino acids for the dog eating it.
And here’s the overlooked problem: AAFCO “all life stages” foods meet nutrient requirements for growth and reproduction, but adult dogs often need far fewer calories than growing puppies.
So owners feed less to prevent obesity. But when you cut food, you don’t just cut calories—you cut protein, amino acids, vitamins and minerals too.
A food can meet AAFCO requirements on paper, yet a lower-calorie dog eating less receives less of EVERY nutrient, not to mention some dogs genetically don’t make enough taurine for heart health.
🐕 The question isn’t “grain-free or grain-inclusive?”
It’s: Is THIS dog getting enough protein, essential amino acids and other critical nutrients for the calories they actually consume? That’s the nutritional DCM conversation we should be having.
Calories change. Nutrient needs don’t.