 The reason is the food my dogs eat. Dr. Marty's Nature's Blend is a premium freeze-dried raw dog food designed to support your dog's health, happiness, and lifespan. Their jaws are more flexible, their teeth are cleaner, and their coat shinier. And why they seem more youthful even as they age. I'm veterinarian Dr. Marty Goldstein. I've helped countless dogs thrive with one simple concept. Your dog needs a high meat diet similar to what their ancestors ate in the wild.