My Coco is 14 yrs old now, and I felt it was definitely time to upgrade her diet. I truly wish I had switched her to grain-free years ago. What a difference in less than TWO WEEKS; Her eyes became brighter, her long coat became shinier and silkier to the touch, and she has so much more energy now. The omega content is so clearly of a healthy amount to bring such a change so quickly. Highly impressed:):):)