What happens if a dog eats Grapefruit?

If a dog eats Grapefruit, they may experience: Vomiting, diarrhea, depression, photosensitivity, weakness.

Not Safe

Not SafeVet ReviewedReviewed by Dr Alex Crow BVetMed MRCVSfruit

Not Safe for Dogs

Key warning: all parts — flesh, peel, seeds, juice

Can Dogs Eat Grapefruit? No — Toxic Oils in Flesh and Peel

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

Grapefruit is not safe for dogs. Like all citrus it contains psoralen and essential oils causing gastrointestinal and potential neurological issues.

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Warning Signs & Symptoms

Vomiting, diarrhea, depression, photosensitivity, weakness.

If Your Dog Ate This

Monitor for vomiting and digestive upset. Call vet if peel consumed in quantity.

What to Avoid

all parts — flesh, peel, seeds, juice

Preparation & Serving

Keep all grapefruit away from dogs. More acidic and bitter than other citrus making it more consistently harmful.

Safer Alternatives

Plain fresh water for hydration

Did you know?

Grapefruit contains naringenin — a flavonoid that interferes with medication metabolism in both humans and dogs by blocking the same liver enzyme. Dogs on any medication should especially avoid grapefruit.

Portions & nutrition

Toxic dose (per kg body weight): Psoralen in peel plus high citric acid — any significant amount causes problems
Calories (per 100g): 42
Safe frequency: Never

Source

Source: ASPCA

What You Need to Know

All parts of grapefruit including flesh, peel, and seeds are problematic for dogs. The psoralen content is higher than in oranges. Keep all grapefruit products away from dogs.

Grapefruit Variations

GrapefruitNot Safe Grapefruit for DogsNot Safe

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

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Frequently asked questions

Is Grapefruit safe for dogs?: No, Grapefruit is not safe for dogs. Grapefruit is not safe for dogs. Like all citrus it contains psoralen and essential oils causing gastrointestinal and potential neurological issues.
What happens if a dog eats Grapefruit?: If a dog eats Grapefruit, they may experience: Vomiting, diarrhea, depression, photosensitivity, weakness.
How much Grapefruit can a dog eat?: All parts of grapefruit including flesh, peel, and seeds are problematic for dogs. The psoralen content is higher than in oranges. Keep all grapefruit products away from dogs.

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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.