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Why is my 1-month-old puppy only drinking formula and not eating?

Updated on September 23rd, 2025

Pet's info: Dog | American Pit Bull Terrier | Female | unspayed | 1 month and 10 days old | 5 lbs

My one month old puppy is only drinking formula milk and isn’t eating

1 Answer

Most Helpful Answer

Lauren Kennedy, DVM

Answered By Lauren Kennedy, DVM

Veterinarian

Published on March 27th, 2019

At 4 weeks of age it is normal for a puppy to only be drinking milk. Ideally your puppy should still be nursing from his mother at this age.

If he is already away from his mother then you will need to continue feeding him puppy milk replacer until about 6 weeks of age. You can try to leave some moistened kibble with him to get him interested in it but at this age he should be still getting most of his nutrition from milk.

I hope this helps. Thanks for using Petco Pet Education Center, formerly Petcoach. Best of luck.
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