Best Dog Food for Sensitive Stomachs

It appears in small print on every bag and says two things: which life stage the food is complete for, and how that was established. "Formulated to meet" means the recipe was checked against a nutrient table on paper. "Animal feeding tests substantiate" means dogs actually ate it under supervision and stayed healthy. The second is stronger evidence, and only Purina Pro Plan, Hill's, Royal Canin and Iams among our eight use it.

There is no evidence it is better for a dog without a diagnosed grain allergy, which is uncommon. Since 2018 the FDA has been investigating reports of dilated cardiomyopathy in dogs eating grain-free diets heavy in peas, lentils and potatoes; no causal link has been established and the investigation has not concluded. Given that, we do not rank a food higher for being grain-free, and if your dog has no allergy there is no reason to seek it out. Ask your vet.

Fresh foods like The Farmer's Dog are genuinely well formulated, and our panel ate them most eagerly. At $6 to $9 per 1,000 kcal against $1.20 for Purina Pro Plan, feeding a 60-pound dog fresh costs roughly $150 a month more. There is no evidence a healthy dog does better on fresh than on a feeding-trial-tested kibble. Buy it for palatability and convenience if the budget is there, not because the cheaper food is failing.

We read the full label, the guaranteed analysis and the AAFCO statement off the bag, and compute cost per 1,000 kcal from the published calorie content and the current price. We check the FDA recall database for the last ten years, and ask each brand who formulates its diets and whether it owns its manufacturing. Twelve dogs of mixed size then eat each food for two weeks while owners log acceptance and stool quality.