Skip to content

No, cranberry juice is not safe for dogs. Though this juice isn’t considered toxic, store-bought juice or pre-prepared cranberry juice contains potentially harmful ingredients like sugar or juice blends. Similarly, pure cranberry juice isn’t a good idea because of its tartness. The high sugar content also makes it a bad source of nutrition for your dog.

Cranberry Juice
caution icon

Caution: This food is generally considered risky by the veterinary community. Dogs should not eat this food and should be monitored for adverse effects.

Food Safety Unsafe, best avoided
Nutritional Issue  High sugar content
Potential Risk Weight gain, gastrointestinal upset, kidney stones
Symptoms Upset stomach, diarrhea
Every dog is different. For specific feeding guidelines, including quantities and beneficial foods that are best for your dog, please consult your vet.

Are Some Cranberry Juices Better Than Others?

No, most cranberry juices are the same. However, there is one difference between store-bought and pure cranberry juice.

Store-bought or pre-prepared cranberry juice may contain other fruit juices, like grape juice, etc., to enhance the taste. As you may know grapes are one of the most toxic foods dogs can ingest. Small amounts of grape juice used in cranberry juice can cause poisoning. They may also contain additives to preserve or extend their shelf life. On the other hand, pure cranberry juice contains no such ingredient but is quite tart. Generally dogs won’t be drawn to a tart sensation.

What Makes Cranberry Juice Unsafe for Dogs?

There are three components that make cranberry juice harmful to dogs:

  • Acid: It is not safe for dogs to consume food or drinks that are high in acid. Typically, acidic drinks are sour and can cause your dog gastrointestinal issues.
  • Calcium oxalates: Consuming food that contains calcium oxalates can be problematic for dogs. Calcium oxalates can cause kidney stones1to develop in your pet’s body, and may ultimately pose a concern to their urinary tract.
  • Sugar: The high sugar content in juice is bad for your dog since they don’t need a lot of sugar in their diet. It can also be a big cause of major health problems like diabetes and obesity.

Signs Your Dog Drank Too Much Cranberry Juice

Cranberries aren’t toxic to dogs, so if your dog has licked some juice off the floor or had a slurp, it is unlikely to cause any problems.

However, if they have consumed a little too much, they are likely to get an upset stomach. Your pet might also experience diarrhea.

TIP: Diarrhea can make dogs dehydrated2, so make sure to place a bowl of clean water in an accessible location.

If your dog drank store-bought cranberry juice, immediately check the ingredients on the box and take them to the veterinarian. Some commercial juice boxes can contain xylitol or grape juice, which is very dangerous for dogs.

Frequently Asked Questions

  • Cranberry juice is harmful to dogs and is best avoided. If your dog has a UTI, you can give them a few cranberries as a home remedy but only with your veterinarian’s guidance. Moreover, it is important to visit the vet before trying home remedies to ensure your dog is not in danger.

  • Fresh juice made of dog-safe fruits and vegetables is good for dogs. It is best to offer your dog homemade fresh juice without any added sugar. Be sure to offer a safe quantity.

  • Yes, cranberries are safe for dogs. Remember to offer cranberries to your dog in moderation. You can also chop them into tiny bits and serve them as a topper on the food.

About the Writer
Dan Greco , Dog Dad

Having been a dog dad for 5 years, I know how hard it is to make sure your dog gets the right nutrients and stays away from hazardous foods. With the help of a veterinarian who specializes in nutrition, I created this blog to help dog owners quickly access food information they need.

photo of vet holding a pup
About the Contributor
Dr. Hillary Wolfe , Veterinarian & Certified Food Therapist

Dr. Wolfe holds a doctorate in veterinary medicine from Kansas State University and holds nutrition certifications from the NAVC and CIVT. Her business, Tula Veterinary Nutrition, hosts online courses that teach owners how to cook for their pet for optimal health and longevity. Follow her on Instagram at @doctorwolfe.dvm for dog nutrition tips, recipes and insights.