Velkan's thyroid is on the lower end of normal and because of that, his coat was terribly dry and flaky and thinning before starting The Honest Kitchen food. We are currently using the Zeal formula with fish. He's been eating this as a topper on his regular grain-free kibble since December 2016 (so 2 months) and we've already noticed an incredible difference in his coat. His hair is filling in and has become very shiny.
He really seems to enjoy the food and I am going to continue with it to see what other changes occur. I am also feeding this formula as a topper with my other dobermans as a nutritional booster. I've noticed considerable improvement in all of their coats. Winter dries them out so bad and we havent seen that this year while feeding THK.