Can I serve Pumpkin Puree on its own as a snack or light meal?

You can serve it as a snack or small light meal in situations where your dog needs something very gentle, for example after an upset stomach or when appetite is low. However, it is complementary feed, not a complete and balanced meal. It contains no meaningful protein or fat, so it should not replace a main meal for more than a day without veterinary guidance. Use it as a digestive snack rather than a food substitute.