Nutrience Grain Free Subzero Northern Lakes Dog Food is a Canadian-made ancestral diet combining protein-rich kibble and freeze-dried NUTRIBOOST to deliver the nutritional benefits of raw in a convenient & easy to use recipe. This high-protein formula is prepared with fresh, never frozen Canadian sources of duck and fresh-water rainbow trout and New Zealand lamb plus real freeze-dried duck for a superior flavor that even the finickiest dogs will crave. Additionally, it includes NUTRIBOOST, made of duck infused with green mussels, pacific cod liver, pumpkin and Acadian kelp, and then gently freeze-dried to lock in the natural goodness of raw, providing superior flavor and promoting optimal health.