Once your dog reaches a mature age, you want to do all you can to keep him or her healthy. Precise Naturals Senior Formula is a nutritious, low sodium food that helps maintain ideal weight in older dogs. It has added L-Carnitine to facilitate weight management and added Taurine for promoting a healthy heart and vision. Precise Naturals is always preserved naturally using mixed tocopherols. Precise Naturals does not add any synthetic preservatives. Precise Naturals Senior Formula - your senior pet has earned it.