Can Dogs Eat Marshmallows?

No, dogs should not have marshmallows as a regular treat. 

A tiny, plain marshmallow is less concerning than a whole bag, but it is still just candy. Once you get into flavored marshmallows, chocolate-dipped versions, or sugar-free products, the risks go up quickly. 

If you want something soft and fun to share instead, a few dog treats include: 

Marshmallows are a poor fit for dogs for a few different reasons. 

• Too much sugar: Candy adds calories fast and can lead to stomach upset. 
• Empty calories: Marshmallows offer almost nothing useful nutritionally. 
• Xylitol risk: Sugar-free candies can cause an emergency if they contain xylitol. 
• Chocolate and dessert add-ins: S’mores ingredients, coatings, and fillings make marshmallows riskier. 
• Sticky texture: Large, gooey bites can be messy and uncomfortable for some dogs to swallow. 

What you should do next depends on the ingredients and how much your dog ate. 

Watch for signs such as: 

• Vomiting 
• Diarrhea 
• Belly discomfort 
• Restlessness 
• Lethargy 

Call your veterinarian if: 

• The marshmallows were sugar-free 
• They were chocolate-covered or part of s’mores 
• Your dog ate a large amount 
• Your dog is very small or already has digestive issues 

If your dog is vomiting or has diarrhea after eating marshmallows, watch for signs of dehydration in dogs. 

Treatment depends on what was in the marshmallows and how your dog is doing. 

• For mild stomach upset: Your vet may recommend monitoring, fluids, and a bland diet. 
• For xylitol exposure: Treatment may include emergency blood sugar monitoring, intravenous sugar (dextrose), and hospitalization. Read more about xylitol poisoning in dogs. 
• For chocolate exposure: Your vet may recommend decontamination (with activated charcoal), monitoring, and supportive care. 
• For large candy amounts: Your dog may need help to relieve their symptoms and dehydration if the sugar load triggers repeated vomiting or diarrhea. 

The easiest way to avoid a marshmallow mishap is to treat them like any other off-limits candy. 

• Keep candy bags and baking supplies out of reach. 
• Don’t leave s’mores ingredients on low tables or counters. 
• Throw away wrappers promptly. 
• Ask kids not to share marshmallows with the dog. 
• Check ingredient labels on sugar-free products. 

One plain marshmallow is unlikely to cause a major problem for most dogs, but it is still not a treat worth making a habit. 

No, mini marshmallows are still candy and bring the same sugar concerns as regular marshmallows. 

Yes, sugar-free marshmallows may contain xylitol, which causes an emergency for dogs. 

Yes. Once chocolate and graham crackers are involved, the overall risk goes up.