Hi, we recently bought a golden retriever puppy that is now 12 weeks old. He was previously being fed Science diet puppy dry food combined with a little of the science diet wet food. I was just wondering what the best dry food for golden retrievers was, as we wanted to make sure he was eating the right food and not something that we have heard so many bad reviews about ? Has anyone had good results with science diet or is it better to slowly switch to an alternative dry food ? TIA