Vitality for the 3rd life stage. As age increases, our dogs' metabolisms start to change. e content of protein, sodium and phosphorus need to be reduced for an appropriate senior diet to protect the internal organs. However, the energy content of the food should only be slightly reduced. Happy Dog Senior contains 5 top quality and highlydigestible protein components, making it particularly well balanced. It is enriched with special roughage sources to promote digestion, vitamin C, along with original New Zealand mussels and L-carnitine. Supplemented with the unique Happy Dog Natural Life Concept® made from natural ingredients with artichoke and chicory, it provides a very wholesome and gentle super premium diet that will maintain the joie de vivre of all active seniors for a long time.