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Why is my 3-month-old puppy not gaining weight even though she eats?

Updated on September 23rd, 2025

Pet's info: Dog | American Pit Bull Terrier | Female | unspayed | 3 months and 27 days old | 50 lbs

My puppy is about 3 months old. I got her from a man who worked with my husband. He knows I'm an animal person & pitbull lover. & so he showed my husband picture of her and her parents. Her parents didn't look very healthy in the pictures so I told my husband bring her home. Id wanted another dog anyways. So now I can't seem to get her to gain weight. She eats 3 cups of dog food a day. Gets plenty of water and exercise and love and play time. What do I do?

1 Answer

Most Helpful Answer

Andrea M. Brodie, DVM

Answered By Andrea M. Brodie, DVM

Veterinarian

Published on September 28th, 2018

You should have Zena examined by your veterinarian to make sure she is healthy. At the same time you can get her wormed (worms could be a reason for not gaining weight), and vaccinated. You say her dam and sire did not look healthy....there could be a congenital problem that could keep her from gaining weight.
Feed her a good quality complete puppy food for medium to large dogs and feed her according to the instructions on the bag.
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