Caution
CautionVet Reviewedsupplement

Use Caution

Medium dog serving: half teaspoon occasionally

Key warning: regular large doses, cod liver oil as primary supplement

Can Dogs Have Cod Liver Oil? Caution — Vitamin A Toxicity in High Doses

This food requires caution. Read the details carefully before feeding.

Cod liver oil is safe for dogs in small amounts but contains very high vitamin A and D which accumulate and cause toxicity with excessive use.

Warning Signs & Symptoms

Vitamin A toxicity: bone pain, joint stiffness. Vitamin D toxicity: kidney damage.

If Your Dog Ate This

Cod liver oil contains approximately 1,000 IU of vitamin A per teaspoon — the recommended daily amount for a 10kg dog is only 379 IU. Regular supplementation quickly exceeds safe cumulative doses.

Safe to Feed

very small amounts occasionally

What to Avoid

regular large doses, cod liver oil as primary supplement

Preparation & Serving

Use sparingly and infrequently. Regular fish oil supplements are safer for ongoing omega-3 supplementation.

Potential Health Benefits

Contains omega-3 fatty acids plus vitamins A and D. Small occasional amounts beneficial.

Safer Alternatives

  • Regular fish oil supplements without high vitamin A and D are safer for ongoing omega-3 supplementation

Did you know?

Vitamin A toxicity from regular use — occasional small amounts are safe

Portions & nutrition

Serving (small dog)
quarter teaspoon occasionally
Serving (medium dog)
half teaspoon occasionally
Serving (large dog)
1 teaspoon occasionally
Calories (per 100g)
902
Safe frequency
Occasional only — regular fish oil preferred

Source

Source: AKC

What You Need to Know

Cod liver oil is often confused with regular fish oil — it contains much higher vitamin A and D levels. Small amounts are safe but regular large doses cause fat-soluble vitamin accumulation toxicity.

Cod Liver Oil Variations

This food requires care — if your dog has eaten a large amount read our emergency guide

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Frequently asked questions

Is Cod Liver Oil safe for dogs?
Cod Liver Oil requires caution for dogs. Cod liver oil is safe for dogs in small amounts but contains very high vitamin A and D which accumulate and cause toxicity with excessive use.
What happens if a dog eats Cod Liver Oil?
If a dog eats Cod Liver Oil, they may experience: Vitamin A toxicity: bone pain, joint stiffness. Vitamin D toxicity: kidney damage.
How much Cod Liver Oil can a dog eat?
Cod liver oil is often confused with regular fish oil — it contains much higher vitamin A and D levels. Small amounts are safe but regular large doses cause fat-soluble vitamin accumulation toxicity.

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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.