I have our pup on what the breeder had her on. She said she never feeds her pups puppy food because she feels it's too rich for them. Our pup is 8 weeks old. She's growing like a weed. But I still worry if she's getting the nutrition she needs. I'm feeding nutro max grain free kibble. Her poops look good, firm. I'm feeding her 3 times a day about as much as she wants in those feedings.