Health & happiness start in the gut – our specialty. At family-owned NutriSource, we believe the secret to health is successful digestion and absorption of balanced nutrition. That’s why we focus on supporting the gut microbiome with our proprietary blend of prebiotics, probiotics, trace minerals and selenium yeast. We call our gut-focused proprietary blend Good4Life because these ingredients nourish the gut microbiome, building the ultimate foundation for a long and happy life. Scientifically formulated, NutriSource Large Breed Puppy Chicken & Rice Recipe includes a blend of chicken, rice, carefully selected ingredients, and Good4Life to provide essential nutrients for optimum health and long life.