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Dog owners, vets question grain-free food

The U.S. Food and Drug Administration says 16 brands of premium dog kibble might be linked to a serious heart condition. The agency says Acana, a brand manufactured by Champion Pet Foods, tops the list of kibble that may be associated with a greater risk of canine dilated cardiomyopathy, or DCM. The FDA's latest update has intensified doubts about grain-free diets. The federal agency first raised as a concern a year ago when it began looking into a possible food link to the deadly heart condition. Among 515 reported cases of DCM were breeds not typically genetically prone to the disease. The FDA, however, does not suggest avoiding certain brands or diets. Nevertheless, some veterinarians encouraged a cautious approach until more is known.
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