Can Dogs Eat Grapefruit? Best Not — and Never the Peel

Why grapefruit is a poor choice for dogs

Grapefruit is one of the most acidic citrus fruits. The AKC says dogs can generally eat a little of the flesh without issues and that it is not toxic, but it still recommends avoiding grapefruit because it can be very irritating to a dog's gut, and its high citric acid is part of why.

The ASPCA explains that the stems, leaves, peels, fruit and seeds of citrus plants contain varying amounts of citric acid and essential oils, and that eating the fruit itself is not likely to cause more than minor stomach upset. So a stolen segment is rarely serious, but there is no reason to offer it.

For dogs that gulp anything new, a slow feeder bowl or a lick mat keeps portions small and eating slow.

The peel, rind and seeds are the dangerous parts

The AKC says grapefruit skin and rind are toxic to dogs because of their natural essential oils, and that a dog that eats them should be seen by a vet immediately. The thick rind is also tough and can be hard for a dog to pass, especially a small one.

Seeds are bitter and can be a choking hazard. The ASPCA notes that large amounts of citrus plant material can irritate the stomach and even depress the nervous system. Put rinds and halves straight into a lidded trash can, and do not leave breakfast grapefruit on a low table.

What to do if your dog ate grapefruit

If your dog ate a segment or two of flesh, take the rest away, offer fresh water and watch for stomach upset over the next day. The AKC suggests calling your vet if your dog ate a large amount of flesh, and telling them how much it was.

If your dog ate peel, rind or a whole fruit, call your vet, a poison helpline or an emergency clinic straight away, as the AKC advises. Have the amount and your dog's weight ready. Do not make your dog vomit unless a vet tells you to.

Grapefruit juice and grapefruit products

Grapefruit juice concentrates the acid and sugar without the fiber, so it is more likely to upset a dog's stomach than the fruit. Sweetened juice and juice blends add sugar, and some diet drinks contain xylitol, which is toxic to dogs.

Grapefruit seed extract, grapefruit essential oil and citrus-scented cleaners are not foods and should never be given to dogs or used on them without a vet's advice. Diffused citrus oils can also bother some dogs, so keep the dog out of the room if you use them.

Puppies and small dogs

Puppies and small dogs have the most sensitive stomachs and the least room for error with a piece of rind. A grapefruit half is big compared with a toy breed, and a puppy is more likely to chew and swallow the peel than an adult dog.

Do not offer grapefruit to a puppy. If a puppy or small dog ate any peel, call your vet straight away, and call the same day for repeated vomiting or diarrhea after eating the flesh.

Signs grapefruit disagreed with your dog, and when to call a vet

The AKC says a dog that eats grapefruit may experience gastrointestinal distress. That usually looks like drooling, vomiting, diarrhea or a reluctance to eat within a day. Mild upset after a little flesh usually settles once the fruit is out of reach.

Call your vet if vomiting or diarrhea repeats, your dog seems lethargic or wobbly, or stops eating. Any sign of distress after eating peel or rind means call immediately, and so do retching, a painful belly or straining, which can mean a piece of rind is stuck.

Safer fruit to share instead

If your dog likes citrus, the AKC suggests small pieces of tangerine or orange flesh with the peel removed, given in moderation. Start with one small segment and stop if your dog's stomach or behavior changes.

Many dogs are happier with lower-acid fruit: blueberries, apple slices with the core and seeds removed, seedless watermelon cubes, or a few slices of banana. Check with your vet before adding a new food if your dog has a sensitive stomach.

This page is general information, not veterinary advice, and it cannot replace an examination by the vet who knows your pet.