Better to skip them
Regular marshmallows are not toxic to dogs, but they are pure sugar and offer no nutrition. Sugar-free marshmallows can contain xylitol, which is highly toxic. Skip them as a treat.
| Can dogs eat it? | Caution |
| Calories | Not recommended as a treat |
| Main benefit | Not toxic if they contain no xylitol |
| Main risk | Sugar-free versions may contain xylitol, which is an emergency |
| Puppies? | No |
A small amount is unlikely to cause serious harm in a healthy dog. Remove any remaining food, offer fresh water and watch for vomiting, diarrhea, a painful belly or lethargy over the next 24-48 hours. Call your vet if your dog ate a large amount, is small, young or has health problems (such as pancreatitis), or if the food contained onion, garlic, chocolate or xylitol.
Related: Xylitol toxicity calculator
These are safe for dogs in treat-size amounts:
Planning treats? Check your dog's full daily needs with the dog food calculator or dog calorie calculator.
Regular marshmallows are not toxic to dogs, but they are pure sugar and offer no nutrition. Sugar-free marshmallows can contain xylitol, which is highly toxic. Skip them as a treat.
Check the ingredients for xylitol first; if present, it is an emergency. Otherwise, expect possible vomiting or diarrhea and call your vet if your dog seems unwell or has a history of pancreatitis.
No. S'mores add chocolate, which is toxic to dogs.
No. Puppies are smaller and more vulnerable than adults, so it is best avoided entirely.
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This guide is general information for healthy adult dogs. Dogs with medical conditions (such as diabetes, pancreatitis, kidney disease or food allergies) may need different advice from their vet.
Caution
Regular marshmallows are not toxic to dogs, but they are pure sugar and offer no nutrition.