News

Is grain-free right for your dog?

Grain-free is one of the most-asked-about shelves in any pet shop, and one of the most confusing. It gets talked about as though it's a health upgrade, and it gets talked about as though it's dangerous. Neither is quite right. Here's what the evidence actually says, and how to work out whether it matters for your dog. The short version For most dogs, grain-free isn't better or worse than food with grains. It's simply a different recipe. Grains aren't a common allergen in dogs — when a dog does react to something in their food, it's far more often a protein like beef, dairy or chicken. So grain-free is worth considering if your dog has a diagnosed sensitivity. It isn't an upgrade you need to make for a healthy dog who's doing well on what they eat now. The part most articles get wrong Since 2018 there's been an investigation into a possible link between certain diets and dilated cardiomyopathy — DCM, a disease where the heart muscle weakens and enlarges. It began in the United States after vets noticed DCM turning up in breeds with no genetic history of it, and many of those dogs were eating grain-free food. That's where most articles stop, and it's where they mislead. The research has moved on. According to Dr Lisa Freeman, a board-certified veterinary nutritionist at Tufts University, the pattern "appears to be more closely associated with diets containing pulses, rather than with the presence or absence of grains in a diet." Pulses means peas, pea protein, lentils and chickpeas. They turn up in a lot of grain-free recipes because something has to replace the grain — but they also turn up in plenty of foods that aren't grain-free at all. Which means "grain-free" on the front of the bag tells you very little either way. The ingredient list on the back tells you more. It's worth being straight about where this sits: no cause has been established. It's an association that researchers are still working on. VCA's clinical overview still lists breed and genetics as the established causes of DCM, and describes the diet link as suspected and under study. The FDA stopped issuing updates in December 2022, saying it would wait for further scientific findings. It hasn't been disproven either — Tufts reported in 2023 that cases were still being reported at roughly one every three days. The encouraging part: where DCM is diet-associated, dogs can improve significantly when the diet changes. How to read your dog's food This takes about thirty seconds and you can do it with the bag you already have at home. Turn the bag over and read the first ten ingredients. Ignore the front of the pack entirely — that's marketing. The ingredient list is ordered by weight, so the first ten are most of what your dog is actually eating. Look for pulses. Peas, pea protein, pea flour, lentils, chickpeas, faba beans. Tufts' guidance is that if pulses appear in the top ten ingredients, or several of them appear anywhere in the list, it's worth a conversation with your vet. Check whether the food meets AAFCO or FEDIAF nutritional standards. It'll say so on the pack, usually in small print near the feeding guide. If a food doesn't say it anywhere, that's worth knowing. That's the whole method. It won't give you a verdict — no label can — but it tells you whether you're in the group that needs to have a conversation, or the group that doesn't. If your dog is itchy This is the reason most people go looking at grain-free in the first place, so it's worth saying plainly: itching has a lot of causes, and food is only one of them. Fleas, atopic dermatitis, contact irritants and seasonal allergies all look similar from the outside. One of our own dogs went through exactly this — constant scratching, no obvious cause. A food change was part of what eventually helped, alongside treatment our vet prescribed. But we only got there because a vet worked through the possibilities in order, and it took time. The reason that matters: a food elimination trial is the only reliable way to identify a food sensitivity, it takes eight to twelve weeks of feeding one thing and nothing else, and it doesn't work if you're guessing. Switching foods on a hunch usually just costs you money and tells you nothing. Your vet is the shortcut here, not the obstacle. Where we stand We sell grain-free food. We'd rather tell you this than have you find out somewhere else and wonder what else we left out. We stock it because it genuinely suits some dogs, and because a dog with a diagnosed sensitivity shouldn't have to shop somewhere else. We don't think it's better than food with grains, we don't market it that way, and if your dog is happy and healthy on what they're eating now, the most honest advice we have is to leave it alone. If you're weighing it up, read the back of the bag and talk to your vet. That's the whole answer. Sources Diet-associated dilated cardiomyopathy: the cause is not yet known but it hasn't gone away — Dr Lisa Freeman, DVM, PhD, DACVIM (Nutrition), Cummings School of Veterinary Medicine, Tufts University, February 2023 Dilated cardiomyopathy (DCM) in dogs — VCA Animal Hospitals This article is general information, not veterinary advice. Your vet knows your dog.