Petco Text Logo
Petco Pet Logo
  • Two Easy Ways to Start Earning Rewards!

    rewards header
    Become a member today!
    Members-only pricing and offers, personalized care notifications, Vital Care points back on every purchase and more!
    Petco Pay LogoBecome a credit card member today!

    Earn 2X Pals Rewards points at Petco
    when you use Petco Pay!

    APPLY NOW
    Learn More About Petco Pay Benefits

My female rats are losing weight but eating. Do they need vitamins?

Updated on September 23rd, 2025

Pet's info: Small Animal | Unknown - Small Animal | Female

I have 2 girl rats and a boy rat. The boy is currently in a separate cage because we have yet to go get him neutered. A few days out of the week i let them roam around & let them play with each other making sure l keep a close eye to what’s happening. Well i got the girls 2 months ago & they’ve been losing weight instead of gaining. They eat like normal, play like normal, & they are still grooming themselves. What do i do? Any vitamins i should give them?

1 Answer

Most Helpful Answer

Mariya Gugel, DVM

Answered By Mariya Gugel, DVM

Veterinarian

Published on December 15th, 2017

Thank you for using Petco Pet Education Center, formerly Petcoach! Your new pets are so precious! Female rats do tend to be a little smaller than males, but I agree that your girls are a little bit thin. I’m not sure how old they are, as juveniles can be a little smaller. I recommend making sure they have plenty of pelleted food formulated for rats and plenty of water. There are many supplements available in pet stores for rats and mice, some of which can be added to the water or food as well as separate gel type diets. In my experience, rats tend to love Cheerios as treats. You should also keep an eye on their stool to make sure it is consistently formed. I hope this helps!
Vote Icon1Pet Parents found this answer helpful

Smart Picks for Smart Questions

Have A Vet Question?

Book an appointment with the pros – our expert vets are here to help.

Share

Styled arrow button