IAMS Proactive Health Puppy Large Breed Dog Food.Not all puppies are the same, so why feed them the same generic food? IAMS brand provides a wide range of premium recipes tailored to meet the unique needs of different dogs so that pups of all shapes and sizes can be at their best, today and every day. It contains Calcium & Phosphorous to support strong bones, crunchy kibbles to reduce plaque build-up in teeth and have Vitamin E to promote the development of the natural defence. This pet food comes with the goodness of protein, beet pulp & prebiotic FOS to help in healthy digestion, Omega-3 DHA for trainable puppies & Omega 3 fatty acids for healthy joints. The IAMS dog food range of products combine quality ingredients with the science developed with nutritionists and veterinarians at the Waltham Centre.