My 13 year old cat stopped playing and I figured it was because of her age. I have been changing the way my family eats and realized that just like us, foods high in carbs are not healthy for the cats main food. I purchased Freshpet and substituted part of each feeding with their existing dry food. While it did take her a few days to get used to eating it, the bowl is now empty after her feedings. She is even starting to get a bit of her friskiness back. My hope is by continuing to feed her this product we will get her weight under control and have a cat that is a little bit more active. We love this product!