Functional treats. A natural alternative for the support of hip, joint and connective tissue functions in dogs of any age. Wheat Free – Very Important if your Pet has a wheat tolerance situation. Because age, breed, diet, life-style, injury, and stress can affect the health of any joint’s structure and function, Flex-All® is designed to meet the needs of your dog! Flex-All® offers your dog an effective line of defense, whether your goal is to support existing “healthy” tissue and joints, or to bring relief and improved function to the aged or injured animal.