Happy Dog Premium – NaturCroq Puppies NaturCroq puppy food is the balanced and highly digestible dry food for puppies from 4 weeks to 6 months. High-quality proteins of animal origin, fully broken down indigenous grain, all necessary minerals, vitamins and trace elements in this puppy food provide the best conditions for healthy growth. For medium and large breed puppies from 6 months we recommend Supreme Medium Junior or Supreme Maxi Junior with a lower protein content.