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

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 an 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

Whipbeagle (Whippet Beagle Mix): Info, Pictures, Care & Traits

The Whipbeagle, a delightful mix of the Whippet and the Beagle, is a unique breed that’s sure to steal your heart. With their...

Are Golden Retrievers Good Hunting Dogs? Everything You Need to Know

We all know by now that Golden Retrievers have become known as one of the most perfect family dogs, but this breed hasn’t...

Can an Unvaccinated Puppy Be Around Vaccinated Dogs? Vet-Approved Facts

Getting a brand-new puppy is an exciting life event. Many people want to show off their new furry friend right away. Bringing puppies...

10 Off-Leash Dog Parks in & Near Vista, CA to Visit in 2025

Vista is known for its stunning views and mild Mediterranean climate. It’s perfect for taking your pup to a dog park! With such...

More related

Bugg Dog Breed: Info, Pictures, Care, & Facts

When searching for a small dog to add to your family, you’ll find vast numbers of small dog breeds. This can make finding...

laurelbox Pet Memorial Gift Review 2025: Healing Hearts After Pet Loss

From the moment you brought your furry friend home, your life was never the same. Suddenly, you had a four-legged best friend who...

350+ Cute Dog Names for Your Adorable New Pup

So, you’ve found the cutest dog in the world, and you’re pretty sure you’ll be best friends for life. All you need to...

Histiocytoma in Dogs? What It Is, Causes & Signs (Vet Answer)

Dogs can get all sorts of “lumps and bumps” that grow on them. Some occur in younger dogs, while most develop notice as...

Keep reading

Can Dogs Eat Beef Broth? Vet-Verified Nutrition Facts & FAQ

The internet is filled with articles about the benefits of bone broth for people, dogs, and cats. These sensationalist pieces proclaim that bone broth, including beef broth, is a wonder drug or a superfood. However, can dogs eat beef broth,...

Can Dogs Eat_beef broth

Member’s Mark vs. Purina Pro Plan Dog Food – 2025 Comparison, Pros & Cons

There are a lot of decisions you’ll face as a dog owner, but one of the most important choices you need to make is what food you’ll be feeding your pet. You want the best for your dog, but with...

Dogster_Dog Food Member_s Mark vs Purina Pro Plan

How Much Calcium Do Dogs Need? 6 Best Sources

We tell our children that if they want to grow big and strong, they better drink their milk. Dogs need calcium as we do, and having the right amount in their systems gives them stronger teeth, nails, bones, and coats....

Boxer with a bone

Top 10 Most Popular Dog Treat Brands in 2025 – Reviews & Top Picks

Dog owners know how much their pets love treats. What could be better than a delicious treat to reward your dog for a job well done? There are many different flavors, textures, and sizes of dog treats, as well as...

jack russell terrier having treats

Victor Dog Food vs Purina Pro Plan: 2025 Comparison, Pros & Cons

With so many pet foods on the market, it can be daunting to choose the right one for your dog. Naturally, we want the best for our pups, but the sheer number of brands, ingredients, options, and more can lead...

Dogster_Dog Food Victor VS Purina Pro Plan

7 Best Wet Dog Foods to Mix With Dry in 2025 – Reviews & Top Picks

Wet and dry food has benefits and drawbacks, prompting many dog owners to mix the two to get the best of both worlds. Your dogs get the fun mix of textures that stave off food boredom, and you get the...

dry and wet cat food on white background

How Much Should I Feed My Corgi? Vet-Reviewed Feeding Guide

Most Corgis love to eat. They’re food-driven, and there’s nothing wrong with that! But while you’ll never have to question how to motivate your Corgi, one thing you might have to worry about is their overeating. Corgis always want to...

Hungry Welsh corgi Pembroke or cardigan puppy eats from ceramic bowl standing on fleecy carpet

Grain vs. Grain-Free Dog Food: Which One’s Better? Facts & FAQ

The grain versus grain-free debate is a controversial and heated topic in the dog world, especially when it comes to specialty dog food. Many dog owners only buy grain-free dog food, while others prefer dog food containing whole grains. There...

Grain vs Grain-Free Dog Food - Featured Image