Points for Pets: Study: Grain-free diet may lead to heart problems for pets NEW YORK (AP) — This past week a recently released study on pet foods revealed that certain grain-free diets in dogs could lead to a heart ailment known as cardiomyopathy. The following is the press release concerning this issue: Sixteen brands of dog food may be associated with a heightened risk of heart failure in dogs, according to the Food and Drug Administration. The FDA isn’t suggesting that pet owners stop feeding their dogs the particular brands yet, but some vets are already advising against “grain free” foods. The FDA is currently investigating more than 500 reports that appear to link dog foods that are marketed as “grain free” to canine dilated cardiomyopathy. The FDA has been warning about the foods based on peas, lentils or potatoes since July 2018, but the statement released late last week is the first time the agency has identified the 16 brand names. The brands are ordered by the number of cases linked to them, which ranged from a high of 67 to 10: Most of the reports were associated with dry dog food formulations, but raw food, semi-moist food and wet foods were included.