 Dr. Marty created Nature's Blend using 50 years of nutritional research and experience, helping dogs make incredible turnarounds. Save up to 54% off Nature's Blend and get a free bag of Cod Crispies, their wild-caught, ultra-crunchy cod skin treats. Go to drmartypets.com slash pets or text pets to 511-511. Your order is back with a 90-day guarantee.