Can Dogs Eat Marshmallows? No — Xylitol in Sugar-Free Varieties is Fatal

This food is NOT safe for dogs. Keep it away from your pet.

Marshmallows are not safe for dogs. They are high in sugar and provide no nutritional value. Regular sugar marshmallows are not expected to contain xylitol, but some sugar-free or diet marshmallows may; sugar-free products that list xylitol can be dangerous. Even regular marshmallows can cause digestive upset, especially if a dog eats a lot.

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Warning Signs & Symptoms

High sugar: digestive upset, blood sugar spike. Sugar-free varieties with xylitol: liver failure and hypoglycemia — life-threatening. Regular large amounts: significant digestive upset.

If Your Dog Ate This

If your dog is choking or struggling to breathe after eating marshmallows, get emergency veterinary help immediately. Otherwise, check the packet. If the marshmallows were sugar-free, list xylitol (sometimes listed as birch sugar), were chocolate-coated or part of s'mores, or you cannot check the label, call your vet, an emergency vet clinic, or an animal poison-control service such as the ASPCA Animal Poison Control Center (888-426-4435; a consultation fee may apply) right away, even if your dog seems fine. Do not wait for symptoms to appear. Have the packet, your dog's weight and your best estimate of how many were eaten ready. If you are sure they were regular sugar marshmallows, xylitol is not expected; call your vet for advice if your dog is small or ate a lot, and watch for vomiting, diarrhea or lethargy. Do not try to make your dog vomit unless a veterinarian or poison-control expert tells you to.

What to Avoid

all marshmallows — regular and sugar-free

Preparation & Serving

Check ingredient list for xylitol immediately. Call vet or ASPCA Poison Control 888-426-4435 if sugar-free marshmallows consumed.

Portions & nutrition

Serving (medium dog): never
Serving (large dog): never
Calories (per 100g): 318
Safe frequency: Never

Source

Source: SAFEFOODFORDOGS

What You Need to Know

Marshmallows are made from sugar, corn syrup, and gelatin with no nutritional value for dogs. The sticky texture means they coat the mouth and throat, and large marshmallows can be a choking risk for small dogs. Regular sugar marshmallows are not expected to contain xylitol; some sugar-free or diet products may, so always check the label. Never give dogs marshmallows.

Not sure what to do next? Read our emergency guide What to Do If Your Dog Eats Something Toxic

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If Your Dog Ate This — Act Now

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Frequently asked questions

Are Marshmallows safe for dogs?: No, Marshmallows are not safe for dogs. Marshmallows are not safe for dogs. They are high in sugar and provide no nutritional value. Regular sugar marshmallows are not expected to contain xylitol, but some sugar-free or diet marshmallows may; sugar-free products that list xylitol can be dangerous. Even regular marshmallows can cause digestive upset, especially if a dog eats a lot.
What happens if a dog eats Marshmallows?: If a dog eats Marshmallows, they may experience: High sugar: digestive upset, blood sugar spike. Sugar-free varieties with xylitol: liver failure and hypoglycemia — life-threatening. Regular large amounts: significant digestive upset.
How many Marshmallows can a dog eat?: Marshmallows are made from sugar, corn syrup, and gelatin with no nutritional value for dogs. The sticky texture means they coat the mouth and throat, and large marshmallows can be a choking risk for small dogs. Regular sugar marshmallows are not expected to contain xylitol; some sugar-free or diet products may, so always check the label. Never give dogs marshmallows.

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Medical Disclaimer: This information is for educational purposes only. Always consult a licensed veterinarian before making dietary changes for your pet.