These are the primary sources behind our health, vaccine, nutrition, and growth pages. Each link is a page already cited on Puppy.tips, or a dog page from our calculator notes (checked October 24, 2026).

We are not veterinarians. This list is general information. It is not a substitute for a veterinarian. Always consult a licensed veterinarian for medical or health advice.

Health and vaccines#

Merck Veterinary Manual#

AVMA#

AAHA#

WSAVA#

VCA Animal Hospitals#

Cornell College of Veterinary Medicine#

UC Davis School of Veterinary Medicine#

Nutrition#

AAHA#

WSAVA#

VCA Animal Hospitals#

Merck Veterinary Manual#

The two Merck pages and the AAHA box below are energy formulas from the calculator notes. They cover dogs and cats. They are a starting point for calories, not a prediction of adult weight.

Growth calculators#

The puppy weight calculator and the breed growth charts estimate adult size from average growth data. Individual puppies vary. Check with your vet.

The calculator notes do not give a measured accuracy percentage for that adult-weight estimate. Newborn care for puppies and kittens is covered here:

Calorie formulas for growing dogs are the Merck energy pages and the AAHA Box 1 PDF in the nutrition section above.