How much marshmallow for your dog?
Most guides say "a few pieces". Enter your dog's weight and get the actual daily ceiling, worked out from marshmallow's calories and the 10%-of-daily-calories treat rule vets use.
Assumes a healthy, neutered adult at a stable weight, and that this is their only treat that day. Puppies, pregnant, very active or unwell pets need different amounts — ask your vet.
Why this verdict for dogs
Plain marshmallows are pure sugar and gelatin, and sugar-free ones may contain deadly xylitol. Best avoided.
🍽️ Feeding it safely?
Frequently asked questions
Can dogs eat marshmallow?
In moderation. Plain marshmallows are pure sugar and gelatin, and sugar-free ones may contain deadly xylitol. Best avoided.
How much marshmallow can dogs have?
Recommended: Best avoided; never sugar-free. When in doubt, ask your vet.
Is marshmallow safe for cats too?
Verdicts can differ between species. See the cat answer for marshmallow →
More pantry & snack foods for dogs
By the CanMyPet Editorial Team · Reviewed against ASPCA Animal Poison Control, the American Kennel Club (AKC) and Pet Poison Helpline · Last updated June 22, 2026.
Sources
- ASPCA — People Foods to Avoid Feeding Your Pets
- American Kennel Club — Dog Nutrition
- Pet Poison Helpline — Poison List