How much grapefruit for your cat?
Most guides say "a few pieces". Enter your cat's weight and get the actual daily ceiling, worked out from grapefruit's calories and the 10%-of-daily-calories treat rule vets use.
Assumes a healthy, neutered adult at a stable weight, and that this is their only treat that day. Puppies, pregnant, very active or unwell pets need different amounts — ask your vet.
Why this verdict for cats
Grapefruit oils are mildly toxic to cats and they dislike citrus. Keep it away.
🍽️ Feeding it safely?
Frequently asked questions
Can cats eat grapefruit?
In moderation. Grapefruit oils are mildly toxic to cats and they dislike citrus. Keep it away.
How much grapefruit can cats have?
Recommended: Avoid. When in doubt, ask your vet.
Is grapefruit safe for dogs too?
Verdicts can differ between species. See the dog answer for grapefruit →
More fruits for cats
By the CanMyPet Editorial Team · Reviewed against ASPCA Animal Poison Control, the American Kennel Club (AKC) and Pet Poison Helpline · Last updated June 22, 2026.
Sources
- ASPCA — People Foods to Avoid Feeding Your Pets
- American Kennel Club — Dog Nutrition
- Pet Poison Helpline — Poison List