IAMS Proactive Health Large Breed Puppy Food with Real Chicken is specially formulated to meet the unique nutritional needs of growing large breed puppies. Made with real chicken as the primary ingredient, this 100% complete and balanced formula contains zero fillers and delivers high-quality protein to support strong, lean muscle development. Enriched with omega-3 DHA, it helps promote healthy brain development, making puppies smarter, more alert, and easier to train during their critical growth stages.

This advanced puppy food is fortified with antioxidants to support immune system development and includes 22 essential nutrients inspired by those found in mother’s milk. Carefully balanced nutrition supports healthy bone growth and ensures a smooth transition from puppyhood to adult dog food. Designed for optimal growth and long-term health, IAMS Proactive Health provides reliable, science-backed nutrition for large breed puppies.