These pups I have are 5 weeks yesterday and have been on the NV and Primal raw. They are so active and lively that mama is 100% done with them. They are really thriving, and I would say are a week ahead of things on their activity and coordination level compared to my normal pups in the past on high end kibble. I have seen 8 week olds raised on crappy kibble that aren't near this nice. The raw feed does wonders for them.