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Question:

One of my cats may have eaten a 50mcg Vitamin D3 pill

I'm really freaking out right now and could use some advice. I have two cats, and I think one of them may have eaten a 50mcg Vitamin D3 pill that I accidentally dropped earlier today. I searched everywhere, but I can't find the pill, so I'm worried that one of my furry troublemakers may have swallowed it. They're both acting normal at the moment, but I know that vitamin D can be really dangerous for cats. I’m not sure how fast symptoms might show up or what I should be looking for. Should I rush them to the vet, or am I overreacting? Any advice on what to do or look out for would be super appreciated. Thanks in advance for any help!

Answer:

Hi there! I'm so glad you reached out about your kitty. Cats can be quite curious, and it's not uncommon for them to get into things they shouldn't. Vitamin D3 can be harmful to cats if ingested in large enough amounts, so it's important to monitor your furry friend closely.



In high doses, Vitamin D3 could cause some issues, including increased thirst, urination, vomiting, diarrhea, or even loss of appetite. Occasionally, more serious signs like weakness, drooling, or muscle tremors can occur. However, a single 50mcg tablet might not lead to severe reactions unless your cat is very small or particularly sensitive.



At home, keep a close eye on your cat over the next 24-48 hours. Ensure they have easy access to fresh water and maintain their regular diet. If you notice vomiting, diarrhea, reduced appetite, or any of the more serious signs I mentioned, it's important to get them checked by a vet.



Please don't hesitate to book a video consult with us at Dial A Vet if you have any concerns or if your cat begins showing symptoms. We're here to help, and it's always better to be safe when it comes to our beloved pets' health. Take care!

Answered by

Louise - Senior Veterinary Nurse, Dial A Vet

June 24, 2025

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The "Ask a Vet" forum on Dial A Vet offers general information and helpful tips on pet health, but it's not a substitute for professional veterinary care. The advice here doesn't create a veterinarian-client-patient relationship, and our vets can't diagnose or treat your pet remotely. For emergencies or specific medical concerns, always contact your local veterinarian immediately. Your pet's health is unique, and decisions should only be made after consulting with a qualified professional. By using this forum, you acknowledge these limitations and agree to seek in-person veterinary advice for all your pet's health needs. View our content guidelines.
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