Happy dog supreme young medium baby is a balanced feed for medium sized breed puppies from 4 weeks to 5 months old phase 1 dogs have special needs during this phase of their lives this feed contains increased nutrient content which is extremely important in that first intense growth period an increased protein content of 29 provides sufficient energy light poultry and aromatic salmon act as the main sources of animal protein new zealand green lipped mussels contain valuable chondroitine