Precise Naturals Large and Giant Breed Puppy Formula is designed for large puppies that are highly active and growing fast. Precise Naturals ensures the proper growth rate for development of strong bones & healthy muscles to support their larger bodies. It is formulated with moderate levels of protein & the optimum ratio of calcium to phosphorus. It's made with high-quality, highly digestible ingredients, plus the vitamins & minerals that are the building blocks for proper development and a healthy start in life. During this critical life stage, nothing's more important to your growing puppy.