There is not much of a way to determine results from any of these joint supplements unless a cat is demonstrating signs of issues with mobility. They are merely done to help to diminish joint deterioration. In Feeby's case she was limping, diagnosed with arthritis, and the Glyco Flex Plus stopped the limping and kept on doing so for as long as she was willing to eat the chews.Okay thank you. I will look for these sprinkles. I like the idea of non invasive. Do you know how to sew results?