The Nulo Adult Trim Grain Free Healthy Weight Dry Dog Food with Bc30 Probiotic is a high-quality, grain-free dog food that is perfect for adult dogs. Made with a proprietary formula that includes bacillus coagulans bacteria, this food is designed to support a healthy digestive system and promote weight loss. The L-carnitine in this food transports fatty acids into cellular mitochondria where they are burned as energy, which boosts metabolism and helps reduce fat stores.