FDA investigates possible link between certain dog food brands, heart disease

CNBC – The Food and Drug Administration is investigating a potential link between certain brands of dog food, including Blue Buffalo, Merrick and Rachel Ray Nutrish, and an increased risk of heart disease in pets.
The agency is looking into more than 500 cases of canine heart disease, identifying the brands of dog food that have been most frequently fed to pets with the disease.Consumers were first warned last year by the FDA that there is a potential link bet