Can Dogs Eat Raisins? No — They Can Cause Kidney Failure

Why raisins are dangerous for dogs

Raisins are dried grapes, and fruit of the grape vine is toxic to dogs. VCA explains that the exact toxin is still debated, with tartaric acid the leading suspect, but the effect is well documented: the kidneys are injured and can stop producing urine. Dried fruit is more concentrated, so a few raisins can carry the risk of many grapes.

The frightening part is how unpredictable it is. The AKC notes that kidney failure has been linked to as little as one grape or raisin per 10 pounds of body weight, while some dogs eat more and stay well. Because nobody can tell in advance which dog will react, every exposure is treated as serious.

If your dog ate raisins: what to do now

Act quickly, before any signs appear. Note roughly how many raisins were eaten, when, and your dog's weight, then call your vet or an emergency clinic straight away. If you cannot reach a vet, call ASPCA Animal Poison Control at (888) 426-4435 or Pet Poison Helpline at (855) 764-7661; both answer around the clock and a fee may apply.

Do not try to make your dog vomit at home with hydrogen peroxide or salt unless a vet tells you to. The AKC advises letting a vet induce vomiting, which works best within the first few hours. Bring the packaging or the food the raisins were in, since the amount matters to treatment.

If you like to share small snacks, a lick mat or a treat ball makes a little go further and slows a fast eater down.

Where raisins hide in American kitchens

Loose raisins are only part of the risk. Oatmeal raisin cookies, cinnamon raisin bagels, raisin bran, trail mix, granola bars, fruitcake, hot cross buns, carrot cake and some muffins and breads all contain them, and VCA warns that baked goods count just as much as the fruit.

Holiday trays and lunch boxes are common sources, as are toddlers who drop snack boxes of raisins on the floor. Keep raisin snacks off coffee tables and counters, ask guests not to share, and teach children that raisins and grapes are never dog treats, even as a reward.

Signs of raisin poisoning and their timing

VCA reports that vomiting or diarrhea usually starts within 12 to 24 hours, and the AKC notes signs can begin within 6 to 12 hours. Other early signs include loss of appetite, belly pain, lethargy and drinking a lot. Pieces of raisin in vomit or stool confirm what happened.

As the kidneys are injured, usually 24 to 72 hours after eating, a dog may pass little or no urine, become dehydrated, have breath that smells of ammonia and grow steadily weaker. VCA notes the outlook becomes poor once urine production stops, which is why treatment should start before signs appear.

How vets treat it, and puppies and small dogs

There is no antidote. Treatment aims to remove the raisins and protect the kidneys: a vet induces vomiting if it is early enough, may give activated charcoal, and often keeps the dog on IV fluids for up to two to three days with blood tests at 24, 48 and 72 hours to check kidney values.

Small dogs and puppies are at the highest risk because a handful of raisins is a much bigger dose for their size. Dogs with existing kidney disease are also more vulnerable. VCA notes that dogs treated promptly, before signs develop, generally have a good outlook, so early action matters most.

Safer treats to give instead

If you want a sweet, chewy fruit treat, a few blueberries, a slice of banana or a cube of seedless watermelon with the rind removed are safe in small amounts. Dried fruit in general is concentrated and sugary, so fresh fruit cut small is the better habit for any dog.

Store raisins and baked goods in closed cupboards, and check ingredient labels on anything you are about to share. When in doubt about a food containing raisins, do not give it, and call your vet if your dog has already eaten some.

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