Tripe is packed with high-quality protein, calcium for strong bones, Vitamin B12, and the all-important Omega-3 and Omega-6, to support the immune system and promote healthy skin and shiny coats. Unlike other tripe dog food you'll find, ours is green because it comes from grass-fed cattle, so retains all its natural nutrients. Being grain free our tripe for dogs recipe is naturally gluten free, containing no grains or bulkers.