Grain-Free food is expensive compared to traditional dog foods but it is equally beneficial for your puppies. But if your doggy is sensitive to grains then Grain-Free Food might cause diseases like dilated cardiomyopathy (DCM), life-threatening heart disease in dogs. Few Golden Retrievers pups love having Grain-Free dog food and hence for them this formula in dog food is essential, avoiding it is not a good idea! Having a talk with your vet will help you a lot because the Grain-Free formula in dog food is not suitable for every dog breed!