What should you be able to feel on a puppy?

[GoSailGo]

At my last vet visit my vet said my puppy was a bit underweight, and now that I've switched food and been able to up it without diarrhea I'm starting to not feel his ribs/hips/backbone without some prodding. I know its bad for a puppy to be too fat or skinny, so how do you tell when a puppy has reached optimal weight? I can't go by visual, because he's 50% fluff. I have felt puppies that don't seem like the even have ribs under all that puppy fat, and leaner puppies...so not quite sure.

[Mary Beth]

Puppies grow so fast and as long as she is healthy and eating well, I suggest you enjoy your pup and don't worry about the weight.

[volcano]

Well the ribs shoul be felt when running your hands along the side or shes fat. and looking from above you should see a waist at the ribline or shes fat. The vet may be used to fat dogs. Whats her weight and age in days? A skinny puppy is best for the dogs future.

[Lilie]

Originally Posted by volcano

Well the ribs shoul be felt when running your hands along the side or shes fat. and looking from above you should see a waist at the ribline or shes fat. The vet may be used to fat dogs. Whats her weight and age in days? A skinny puppy is best for the dogs future.

It's really difficult to follow that guide line as a puppy still has all that snuggly baby fur.