Our Vets are Available 🟢
Dial A Vet Logo
🐾 Pet Health
Blogs
Dog HealthCat HealthVeterinary ServicesPet Health
ask a vet
Ask A Vet Q&A - Free!
resources
Free Symptom CheckerDial A Vet NZFind a Local Vet Clinic
about DIAL A VET
Terms & Conditions
Privacy PolicyEditorial GuidelinesNewsletter
View all Blogs
Over 6,000 Articles
View All Q&A
5,000+ Answers
💵 Pricing📖 How it Works📧 Contact
Chat to a Vet

Question:

Can my 75lb dog have a supplement with vitamin D in it?

I need some advice on supplements for my 75lb fur baby, Max. He's a very active and playful lab mix, and I've been considering adding a supplement to his diet that has vitamin D. I've heard mixed opinions on this and I'm worried about overdoing it since I know too much vitamin D can be harmful to dogs. Max is pretty much my world, and I want to make sure I'm not unintentionally putting him at risk. I've spoken to my vet briefly about adding supplements for his joints, but I didn't get a definite answer on whether vitamin D would be okay. Has anyone had experience with this kind of supplement? Are there any signs of vitamin D toxicity I should be on the lookout for? Any insights would be really appreciated because I’m overthinking this and don’t want to make a mistake. Thanks in advance!

Answer:

Hello there! Great question, and it's super that you're being proactive about your dog's health. Vitamin D is essential for dogs, as it helps regulate calcium and phosphorus balance, promoting strong bones and teeth. However, unlike humans, dogs can't produce vitamin D from sunlight and need to get it through their diet, so it's crucial to ensure they're getting the right amount.



In most cases, quality commercial dog foods already contain the appropriate levels of vitamin D, making additional supplements unnecessary unless recommended by a vet. Too much vitamin D can lead to toxicity, which can cause symptoms like vomiting, weakness, loss of appetite, increased thirst, and even kidney damage.



At home, ensure your dog maintains a balanced diet and consult with your vet before introducing any new supplements. Keep an eye out for signs like excessive drooling, frequent urination, or behavior changes, which might indicate an issue.



If you're concerned about your dog's vitamin D levels or overall health, it’s a good idea to discuss this with a vet. I'd recommend booking a video consult with one of our vets on Dial A Vet, so you can get tailored advice and peace of mind.

Answered by

Louise - Senior Veterinary Nurse, Dial A Vet

June 21, 2025

  Book A Vet Consultation
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.
🧠 Related Pet Owner Questions
Is my dog okay? Is he just old?
Louise - Senior Veterinary Nurse, Dial A Vet
⭐⭐⭐⭐⭐
IBD vs Cancer in cats: Would you get an endoscopy or start steroids ASAP?
Louise - Senior Veterinary Nurse, Dial A Vet
⭐⭐⭐⭐⭐
My cat got neutered and got an E-Collar, but it didn't exactly work positively
Louise - Senior Veterinary Nurse, Dial A Vet
⭐⭐⭐⭐⭐
Dog, stage IV, bcell lymphoma, palliative only, prognosis 3-5 weeks. Still alive 10 months later.
Louise - Senior Veterinary Nurse, Dial A Vet
⭐⭐⭐⭐⭐
Money Magazine
Australia's Leading
Online Vet
TrustPilot:
Excellent
Real Vets

Thousands of Pet Owners across the Globe rely on Dial A Vet for peace of mind.

Real questions, vet reviewed answers and quality care.

Trusted by 40,000+ users
4.7/5
dog in grass
Ina
Pet Owner

It was so easy, I needed some eye drops for my dog and thinking about going to the vet on a weekend made me nervous about the cost involved. Dial A Vet was a much simpler, cheaper option with faster results. Within 10 minutes of the call, I had the medicine I needed for my dog without an expensive consultation.

25 May 2025
Joanne
Pet Owner

A great fast efficient service with a qualified vet who was lovely and helpful. Thank you Samantha. I was able to sort my dog at 6pm on a Sunday night for $49 - amazing. Highly recommend.

12 May 2025
Lisa
Pet Owner

What an amazing service, at my wits end as I knew my beautiful dog had an ear infection, could not get into the vet for 4 days. Never knew there was vets online until I googled. Within 15 minutes on a Sunday I was taking to beautiful Samantha who diagnosed and treated our Jasper. Only $49. She trusted that we knew our boy and gave us lots of advice. I will definitely be using dial a vet every time and sharing with all my friends and family. Absolutely fantastic kind caring service. 11/10

7 April 2025
The logo for Dial A Vet, the online vet company.

With Dial A Vet, expert veterinary advice is just a tap away. Get fast vet consultations, trusted care, and personalized pet support—anytime, anywhere, all year round.

Dial A Vets uses software that is HIPAA compliant and SOC - 2 Certified.

support@dialavet.com.au

dial a vet owner with cat
dial a vet pet owner with dog in a orange top
colourful pet owner with their dog
40k+
Pet Owners
Fluffy stuff
Terms & ConditionsPrivacy policy
Company
How It WorksPricingBlogFree Online VetOnline VetPet Symptom CheckerFind a Local Vet ClinicFree Teachers lesson plansGasTexts: Free Gas Prices TextedCheersVC
NEW ZEALAND
Speak to A Vet NZ
Our Social Links