While some fruits are okay to feed dogs in small doses, citrus fruits are not included in that list. Below we discuss the various citrus fruits that pose a serious hazard to our pets:


Since lemons have such a sour taste, it’s not extremely likely that your dog will gobble up a slice. Still, some dogs are extra curious and just don’t care what it is they’re munching on. Lemons contain psoralen compounds and aromatic oils that may cause vomiting and diarrhea. Keep them in the closed refrigerator where your dog can’t try to chew them.


Similar to the lemon, limes are not good for your dog either. The symptoms are the same—vomiting and diarrhea. Also be aware the extracts of these fruits, like lemon and lime juices or flavorings, could have the same adverse effects as well.


The citrus content of oranges is also dangerous for dogs, and they may be even more dangerous because they’re sweeter-tasting then lemons or limes, so your dog might be more inclined to try a slice of orange. Be aware that the acid of an orange is found all over the orange plant, including on the stems, leaves, and peels. A dog will probably be okay, apart from a possible bellyache, if he eats just a small morsel of orange, but any larger amounts could prove dangerous.


Grapefruit is toxic to dogs, as well as cats, and might cause depression, vomiting, diarrhea, and even photo-sensitivity, or a sensitivity to bright light.

Other Fruits

Citrus fruits aren’t the only dangerous ones. Grapes are toxic to dogs, as are their dried versions, raisins. Apple seeds, peach pits, and cherry pits all contain toxic elements as well.

Always call your Richmond Hill veterinary professional before attempting to feed your dog any kind of fruit. Keep hazardous fruits and other “human” foods safely secured in the refrigerator in or in sealed cabinets.