Your large breed puppy has big nutritional needs. That's because large dogs have a longer growth period than smaller ones. As they grow, they can multiply their birth weight by an impressive 70 to 90 times! Then later, as adults, large breed dogs are more at risk of developing bone and joint issues. That's why they need optimum nutrition early on, to develop strong muscles and bones that will support their large bodies throughout their lives. Royal Canin Large Puppy Dry Dog Food is a wholesome puppy food that's formulated for your large breed puppy's healthy growth and development. Clinically proven antioxidants, including vitamins E and C, help support the healthy development of immune systems. The dog kibble is enriched with DHA, an omega-3 fatty acid that's scientifically proven to support your puppy's brain development. And a combination of prebiotics and highly digestible proteins helps promote a healthy balance of intestinal bacteria for digestive health and optimal stool quality. Keep your large breed dog on this dry puppy dog food for 15 months so they have a strong and healthy start. With over 50 years of scientific research and observation, Royal Canin continues to deliver targeted nutrition to feed every pet's magnificence. Not satisfied? Then neither are we. Our formulas are 100% satisfaction guaranteed. (Just contact us for more details.)