~Purina Pro Plan Bright Mind Adult 7+ Dog Food contains a breakthrough blend of brain supporting nutrients for cognitive health of your senior, medium to large breed adult dog. A combination of key nutrients that helps to support joint health and mobility for your mature dog's active lifestyle. Proven to promote mental alertness and sharpness in dogs 7+. Brain-supporting nutrients which contains a proprietary blend of DHA & EPA, Antioxidants, B vitamins, and Arginine for cognitive health Fortified with Guaranteed Live Probiotics for digestive and immune health Chicken is the first ingredient Glucosamine and EPA, an omega-3 fatty acid, for joint health and mobility Omega-6 fatty acids and vitamin A to nourish skin and coat Antioxidants for a healthy immune system Making The Switch To Pro Plan : By choosing to feed your dog Pro Plan you can be reassured that our tailored nutrition will have a positive impact on your dog's long-term health and well-being. Although you will be keen to see the difference Pro Plan can make in your dog, please allow 7 - 10 days to transition from their current food. This enables your dog's digestive enzymes to gradually adapt to the change in ingredient and nutritional content, assisting with the proper digestion of the food and helping prevent stomach upsets. Each day, simply feed a little less of the previous food and a little more of Pro Plan until you are feeding Pro Plan exclusively.