Nulo Senior Grain Free Dog Food With Glucosamine And Chondroitin, Trout And Sweet Potato Recipe - 4.5, 11, Or 24 Lb Bag GRAIN-FREE recipe contains no corn; wheat; soy; white potatoes; tapioca; artificial colors, flavorings or preservatives. Proudly made in the USA. HIGH MEAT/LOW CARB proprietary formula 80% animal-based protein for more amino acids and better flavor using fewer carbs and low glycemic ingredients Nulo Sr Dry Dog Food more closely resembles your dogs ancestral diet than grain-based carbohydrate formulas. MAY REDUCE food sensitivities or allergies. JOINT SUPPORT for dogs with Glucosamine and Chondroitin. These anti-inflammatory properties promote joint flexibility and pain relief. PATENTED BC30 PROBIOTIC supports healthy gut flora, aids in food digestion and metabolism regulation. Promotes healthy weight and stamina with L-Carnitine.