Not SafeVet ReviewedReviewed by Dr Alex Crow BVetMed MRCVSsupplement

Can Dogs Have Vitamin D Supplements? No — Toxic in Human ...

This food is NOT safe for dogs. Keep it away from your pet.

Vitamin D supplements are toxic to dogs in large doses. Vitamin D3 toxicity causes dangerous calcium buildup affecting kidneys and heart.

Warning Signs & Symptoms

Vomiting, diarrhea, lethargy, loss of appetite, excessive thirst and urination, kidney failure.

If Your Dog Ate This

Call vet or ASPCA Poison Control 888-426-4435 immediately. Vitamin D toxicity causes progressive kidney damage over days.

What to Avoid

all vitamin D supplement products

Preparation & Serving

Store all supplements in locked medicine cabinets. Keep vitamin D supplements especially secured.

Safer Alternatives

  • Consult vet for dog-appropriate vitamin D supplementation if needed

Did you know?

Vitamin D toxicity in dogs causes hypercalcemia — dangerously high blood calcium — which causes calcium to deposit in soft tissues including kidneys, arteries, and lungs, causing irreversible organ damage.

Portions & nutrition

Toxic dose (per kg body weight)
As low as 0.1mg per kg of vitamin D3 causes toxicity
Calories (per 100g)
0
Safe frequency
Never without vet prescription

Source

Source: ASPCA

What You Need to Know

Dogs need far less vitamin D than humans. Human vitamin D supplements can easily cause toxicity. Never give human supplements to dogs without vet guidance.

Not sure what to do next? Read our emergency guide What to Do If Your Dog Eats Something Toxic

Want to know what other dangers are hiding in your home?

Take the 60-second kitchen safety quiz to find out your dog's risk score.

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Medical Disclaimer: This information is for educational purposes only. Always consult a licensed veterinarian before making dietary changes for your pet.