Looking for the best dog food nutritionist? Martina Schumann, founder of The Healthy Barker, is a certified pet nutritionist with honours from Southern Illinois University. She specializes in canine nutrition and recipe formulations, believing that a balanced whole-food diet is key to a dog’s best health and longevity. The Healthy Barker was born from a deep love for dogs and a desire to provide them with the best nutrition. It all started with Martina, who, disappointed by the quality of commercial dog food, began creating fresh, homemade meals for her beloved Cockapoo, Winnie.