FDA has investigated more than 500 cases of dilated cardiomyopathy in dogs and has identified 16 brands of dog food which had the most frequent reported cases. The top three brands, according to the FDA, are Acana, named in 67 reports; Zignature, named in 64, and Taste of the Wild, named in 53 reports. 'We know it can be devastating to suddenly learn that your previously healthy pet has a potentially life-threatening disease. FDA is committed to continuing our collaborative scientific investigation into links between DCM and certain pet foods,' said Dr. Steven M. Solomon, director, FDA Center for Veterinary Medicine. If DCM is caught early, heart function improves in cases not linked to genetics with veterinary treatment and dietary modification, according to the FDA.