Benefits and risks
Benefits
- A small bite of flesh is unlikely to cause harm
- Contains vitamin C (which dogs make themselves)
- Better citrus option: a few orange segments
Risks
- Peel and pith contain irritating oils and psoralens
- Acidity can cause vomiting and diarrhea
- Most dogs dislike the bitter taste
If you choose to share
- Skip grapefruit as a treat
- If your dog ate peel, watch for vomiting and call your vet if it persists
- Offer orange segments or berries instead
My dog ate grapefruit. What should I do?
A small amount is unlikely to cause serious harm in a healthy dog. Remove any remaining food, offer fresh water and watch for vomiting, diarrhea, a painful belly or lethargy over the next 24-48 hours. Call your vet if your dog ate a large amount, is small, young or has health problems (such as pancreatitis), or if the food contained onion, garlic, chocolate or xylitol.
Safer treats to give instead
These are safe for dogs in treat-size amounts:
Planning treats? Check your dog's full daily needs with the dog food calculator or dog calorie calculator.
Grapefruit and dogs: FAQ
Can dogs have grapefruit?
It is best not to give dogs grapefruit. The flesh is not considered dangerous in a small bite, but it is very sour, and the peel, pith, seeds and plant contain essential oils and psoralens that the ASPCA lists as toxic to dogs.
Is grapefruit toxic to dogs?
The ASPCA lists the grapefruit plant and peel as toxic because of essential oils and psoralens. A taste of the flesh is unlikely to cause more than stomach upset.
Can puppies eat grapefruit?
No. Puppies are smaller and more vulnerable than adults, so it is best avoided entirely.
More "can dogs eat" guides
Browse lists: all fruits dogs can eat · human foods dogs can eat · foods dogs can't eat
Sources
This guide is general information for healthy adult dogs. Dogs with medical conditions (such as diabetes, pancreatitis, kidney disease or food allergies) may need different advice from their vet.