Can Dogs Eat Marshmallows?
Short answer: Better avoided. Plain marshmallows aren’t toxic, but they’re pure sugar with no benefit, and sugar-free versions may contain xylitol, which is highly toxic to dogs.
Why it’s a problem
Marshmallows are mostly sugar and offer nothing nutritionally. The bigger danger is xylitol, an artificial sweetener found in some sugar-free products that the ASPCA lists as highly toxic to dogs.
How much and how to serve it
None. If your dog loves sweet, soft treats, try a few blueberries or a slice of banana instead.
Risks to watch for
- Sugar contributes to weight gain and dental problems.
- Sugar-free marshmallows may contain xylitol, which can be life-threatening.
- S’mores and chocolate-coated marshmallows contain chocolate, which is toxic.
- They’re sticky and can be a choking hazard.
What to do if your dog ate marshmallows
This isn’t always an emergency, but call your vet if your dog ate a large amount, keeps vomiting, has belly pain, or seems unwell. Mention any ingredients the food contained.
Related foods
- Can dogs eat bananas? 🟡 Yes, in moderation
- Can dogs eat strawberries? 🟡 Yes, in moderation
- Can dogs eat apples? 🟢 Yes, safe
- Can dogs eat blueberries? 🟢 Yes, safe
FAQ
Are marshmallows toxic to dogs?
Plain marshmallows aren’t toxic, but sugar-free ones may contain xylitol, so always check the label.
What if my dog ate something with xylitol?
Treat it as an emergency and call your vet or the ASPCA Animal Poison Control Center at (888) 426-4435 right away.
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By the Petybuzz Editorial Team · Last checked November 10, 2026. This page is general information for pet owners, not veterinary advice. Every dog is different: if yours has a medical condition, is on a special diet, or you’re unsure, ask your veterinarian.