Get

In Your Inbox

Dogster is reader-supported. When you buy via links on our site, we may earn an affiliate commission at no cost to you. Learn more.

Can Dogs Eat Marshmallows? Vet-Verified Risks & FAQ

Share

Can Dogs Eat Marshmallows

We all love to indulge in a treat from time to time, and marshmallows are as indulgent as they come. Roasted over an open flame or mixed in with Rice Krispies, they are delicious and super-sugary snacks.

But is it okay to give your dog a marshmallow? They deserve such a tasty treat, don’t they?

While it may seem harmless to share a marshmallow with your dog, it’s actually not recommended. Dogs can’t handle sugary treats the way that we can, and some marshmallows contain xylitol, a sugar substitute that is toxic to canines.

Let’s get into why dogs shouldn’t eat marshmallows and what kinds of human treats are safer and healthier for them.

divider dog faces oct 2024

Why Can’t Dogs Eat Marshmallows?

It’s all in the ingredients. Store-bought marshmallows typically contain gelatin, corn syrup, water and sugar. Some often sugar-free marshmallows contain the natural sweetener xylitol, which is toxic to dogs. Never give your pet a marshmallow or anything else that contains xylitol.

If your marshmallows don’t contain xylitol, it likely won’t harm your dog if they eat one, but all that sugar is still not good for them in the long run.

close up of marshmallows
Image By: NoName_13, Pixabay

Dangers of Feeding Marshmallows to Dogs

Any food with a large amount of sugar should not be given to canines, and since a marshmallow mainly consists of sugar, it’s definitely not good for dogs.

If a dog eats too much sugar it can cause an upset stomach complete with vomiting and diarrhea. Eating lots of sugar over the long run adds a lot of extra calories to a dog’s diet which can contribute to weight gain and obesity. These in turn can contribute to things like diabetes and joint issues. Not to mention, high amounts of sugar can cause dental problems.

But don’t opt for sugar-free marshmallows instead, since there’s a chance that xylitol can be an ingredient. Why is xylitol so harmful to canines? It can trigger the rapid release of insulin that can quickly lead to a drop in blood sugar, leading to hypoglycemia. It can also lead to liver failure.

Signs of xylitol poisoning can include:
  • Vomiting
  • Lack of coordination
  • Weakness
  • Lethargy
  • Tremors
  • Seizures
  • Collapse
  • Coma

If your dog ate anything containing xylitol, even one mini marshmallow, contact a veterinarian immediately! You can also call the Pet Poison Helpline at (855) 764-7661 for further assistance.

Marshmallows can also be a choking risk, especially in small dogs

Female vet examining sick and sad Rhodesian ridgeback dog
Image By; Zontica, Shutterstock

What Should You Do If Your Dog Ate Marshmallows?

If your dog has eaten one or two regular sugar marshmallows, they will likely be fine. However, you should double-check the ingredients on the bag to ensure that no xylitol is present.

If your dog consumed a significant number of marshmallows, it is best to contact a vet immediately. While a few marshmallows may only give your dog an upset stomach, you should speak with a vet if your pet has a health condition like diabetes. Additionally, you should never give marshmallows to small or young dogs.

If you need to speak with a vet but can't get to one, head over to PangoVet. It's our online service where you can talk to a vet online and get the personalized advice you need for your pet — all at an affordable price!

PangoVet_Mention-in-Content Savings V1

divider dog faces oct 2024

Frequently Asked Questions

What Other Foods Are Bad for Dogs?

Several foods are bad for canines. You already know about xylitol, but there are also:

  • Avocados
  • Alcohol
  • Onions
  • Garlic
  • Anything with caffeine
  • Grapes
  • Raisins
  • Dairy products
  • Macadamia nuts
  • Chocolate
  • Bones
  • Fat trimmings
  • Raw eggs
  • Raw meat
  • Raw fish
  • Salt
  • Sugary food and drinks
  • Yeast dough
  • Human medicine

The list goes on, but these foods are the worst culprits and either are outright toxic or have the potential to make your dog sick.

If you suspect that your dog has eaten anything on this list, contact your vet or the closest vet emergency clinic for the next steps.

medical treatment of sick husky dog in vet clinic
Image By: Pressmaster, Shutterstock

What Are Healthier Sweet Snacks for Dogs?

Bear in mind that treats and snacks should only make up 10% of your dog’s diet, even if they are considered healthy. Your best bet is to stick with vegetables and small amounts of fruit, which is both healthy and sweet. Not all vegetables and fruit are safe, however. You should stay away from grapes and citrus fruits are also not recommended. Be sure to remove all seeds and pits and serve fruits and vegetables plain without seasonings.

The following fruits are safe for dogs:

  • Apples
  • Bananas
  • Blackberries
  • Blueberries
  • Cantaloupe
  • Carrots
  • Corn
  • Green beans
  • Honeydew
  • Peas
  • Pumpkin
  • Raspberries
  • Strawberries
  • Watermelon

Are Other Treats With Marshmallows Safe for Dogs?

No. A few of the other things that are generally eaten along with marshmallows make them even worse. For example, Rice Krispie squares have butter in addition to the sugar. S’mores have chocolate, which is toxic to canines. Basically, it’s best to just keep your dog away from sweet treats for humans!

divider dog faces oct 2024

Conclusion

Feeding sugary treats to your dog is not a good idea, though if your dog eats just a small amount of something with sugar, like one or two marshmallows, they are unlikely to suffer any lasting harmful effects. However, if your dog consumes a large number of sugary treats, especially anything containing xylitol, it’s essential to contact your vet.

As a responsible dog owner, you should avoid bringing products into your home that contain xylitol to ensure your pet’s safety. Stick with sweet healthy things like blueberries and watermelon, or throw in a few veggies, such as carrots and green beans.


Featured Image Credit: Nella, Shutterstock

Want content like this delivered to you?

Sign Up For Our Newsletter

News, insights, expert advice, and everything dog

* By submitting, you agree to our Terms & Conditions and Privacy & Cookies Policy.




How useful was this post?

Click on a star to rate (you can leave written feedback after clicking submit)

Help us improve Dogster for pet parents!

Your feedback really matters.

What did you like about this post? Also how can we improve it?

Join the conversation

Leave a Reply

You’re very welcome to leave a comment or question. Please know that all comments must meet our community guidelines, and your email address will NOT be published. Let’s have a positive and constructive conversation.


Talk With A Vet Online

Peace of mind,
anywhere, anytime

Affordable vet advice

Dogster’s Weekly Photo Contest Winners: My Favorite Toy (March 19, 2026)

Every week our team gets the privilege of sorting through our readers photos to choose what dogs will win this weeks contest! See...

Your Dog Thinks French Fries Are Fine. Your Dog Is Wrong.

Has your dog ever given you that look? The one where their eyes follow every movement of your hand from plate to mouth....

AKC Humane Fund to Provide Support When and Where It’s Needed Most

As more and more people are struggling to make ends meet, a new initiative has been launched to increase access to emergency veterinary...

Ask Dr. Paola- I Need Help With My Dogs Anxiety! (March 16, 2026)

Welcome to our “Ask Dr. Paola” series, where every Monday we bring expert advice straight from Dr. Paola Cuevas (MVZ) to help our...

More related

Jonangi Dog Breed: Info, Pictures, Care Guide & More

Finding a perfect future puppy for your household can be a real challenge, especially when considering your home’s environmental factors and whether they...

6 Best Dog Thermometers in 2026 – Reviews & Top Picks

There are several reasons for pet owners to have a thermometer designated just for their pets. For many, knowing their pet’s baseline temperature...

Australian Shepherd Dalmatian Mix: Info, Pictures, Temperament & Traits

An Australian Shepherd Dalmatian sounds like a fanciful combination. It is a fairly rare crossbreed that takes two beloved dogs and combines them...

Is It Too Late to Brush My Dog’s Teeth? Vet-Reviewed Dental Facts

Brushing a dog’s teeth is essential for maintaining good dental hygiene. As a responsible dog owner, you should be regularly brushing your dogs’...

Keep reading

9 Best Dog Foods for a Yorkie Poo in 2026 – Reviews & Top Picks

If you are the lucky owner of a Yorkie Poo, you are familiar with how such a large personality can come in a tiny package. There is no doubt you will be in search of the best dog food to...

Brown Yorkie Poo standing in the grass

8 Best Foods for French Bulldog Puppies in 2026 – Reviews & Top Picks

With their small stature and adoring personalities, French Bulldogs are among the most popular medium to small dog breeds. Frenchies are well known for their happy-go-lucky personalities and cute faces. Their easy-going nature extends to their food, and they are...

french bulldog eating food from bowl

Can Dogs Eat Pigs’ Feet? Vet-Approved Facts & FAQ

Dogs are glad to try any meaty snack you wave in their faces, but it can be tricky to tell what exactly they can and can’t eat. For instance, can dogs eat pigs’ feet? Yes, dogs can eat pigs’ feet,...

Can Dogs Eat Pigs’ Feet

10 Best Bowls for Small Dogs in 2026 – Reviews & Top Picks

Finding the perfect bowl for a small dog will be different for every owner because, apart from their size, every small dog differs from the next. We can all agree that some of our needs overlap; the perfect bowl is...

French bulldog eating from a bowl

Can Dogs Eat Tic Tacs? Vet-Reviewed Risks & Precautions SE PAOLA

Tic Tacs are a tasty little treat that we keep in our car or purses whenever we need breath freshening. While most of us wouldn’t offer a Tic Tac to our dog to freshen its breath—no matter how badly they...

Can Dogs Eat Tic Tacs

Front of the Pack Dog Food Review 2026: Our Expert’s Opinion

If you’re like most dog owners, you want what’s best for your furry friend. That’s why you’re probably always on the lookout for new and improved dog food brands to try. Well, look no further! In this blog post, we’ll...

Dogster_Front of the Pack Dog Food Review

Can Dogs Eat Tamales? Vet-Verified Nutrition Facts & FAQ

Tamales are popular in Mexican cuisine, and people worldwide love to eat them. If you also love to eat tamales and have a dog, you’ve probably noticed your canine lurking around, looking for tamale scraps. Tamales are not suitable for...

Can Dogs Eat Tamales

How Much to Feed a German Shepherd: Vet-Approved Guide

Do you have a German Shepherd? If so, you’re probably wondering how much food to feed him. It can be tricky to figure out the right amount, especially since puppies and adults have different nutritional needs. In this blog post,...

german shepherd dog lying near food bowl

Love Dogs? So Do We! Join the Dogster Community

Stay informed with expert pet care insights delivered straight to your inbox! Discover professional guidance on animal behavior, feeding tips, trusted product picks, and much more.




Sign up for the Dogster Email Newsletter