Can dogs eat marshmallows?
No.
Marshmallows aren't a good treat for dogs. They're almost pure sugar with no nutritional value, and sugar-free marshmallows may contain xylitol, which can cause dangerously low blood sugar and liver damage. One regular marshmallow is unlikely to harm a dog.
Did your dog just eat marshmallows?
If your dog ate sugar-free marshmallows, or a lot of regular ones, call your vet or a pet poison line now. Check the label for xylitol.
Call your vet, an emergency vet, or a 24/7 pet poison line:
US numbers. A consultation fee may apply. Don't try to make your dog vomit unless a vet tells you to.
Sugar-free marshmallows and xylitol
Some sugar-free and "keto" marshmallows are sweetened with xylitol (also listed as birch sugar). In dogs it can drop blood sugar within an hour and damage the liver at higher doses. Signs include vomiting, weakness, wobbliness, and seizures.
Regular marshmallows
Regular marshmallows aren't toxic, but they're high in sugar and calories. Eating a bag can cause vomiting and diarrhea, and they can be a choking risk for small dogs. Hot chocolate with marshmallows adds chocolate, which is toxic.
Helpful tools and guides
- Can dogs eat peanut butter?
More on xylitol and how to spot it.
- Can dogs eat chocolate?
S'mores and hot chocolate add a second toxin.
- What can dogs eat?
Our full list of safe and dangerous foods.
Frequently asked questions
My dog ate one marshmallow. Is that OK?
One regular marshmallow is unlikely to cause harm. Check the label for xylitol, and call your vet if it's sugar-free.
Can dogs eat s'mores?
No. S'mores combine marshmallow with chocolate, which is toxic to dogs.
Are marshmallow dog treats safe?
Treats made specifically for dogs are formulated without xylitol, but they're still sugary. Read the label and keep them occasional.
Sources
- American Kennel Club. Can Dogs Eat Marshmallows? (AKC expert advice).
- Merck Veterinary Manual. Xylitol Toxicosis in Dogs.
- US Food and Drug Administration. Paws Off Xylitol; It's Dangerous for Dogs (consumer update).
Sources last checked: . How we calculate
Tools for your dog
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