He's 18 weeks old as of yesterday, loves everyone, and he just joined our pack 3 days ago from a home that put little work in with him. But hey, no bad habits to speak of, potty training and "sit" are a great start! Fortunately he's bonding very well with me, and is praise & (highly) treat motivated, which is making basic obedience training go more smoothly than I had any right to expect. Knowing that the obstinate phase is around the corner, we're focusing on the basic commands and heeling with a loose leash, while maximizing socialization. His prior family gave us his vet record and unfiled registration, which we'll file once he's microchipped next week. Per the vet record, he's healthy, wormed, and had the full course of shots and boosters, and was 65 lbs a week ago. Now that you've heard his life story, I need some advice. Last week, his former family asked the vet for a food recommendation, and switched him cold turkey to Diamond large breed puppy food. Likely due to the lack of transition, he's not had a solid bowel movement since. I've been researching the food question to death, including some hours on this forum, but would love some breed-specific advice from you folks. Switching him GRADUALLY to an adult or all-stage kibble seems like the right move, but should I give him time to acclimate to the current food first or start the transition now while he's still in flux? I'm thinking of adding some rice to the current food for now, and/or pumpkin (which I'd never heard of using prior to this forum). And of course, which food to switch to? Moose thanks you in advance with a slobbery kiss!