Verdict
Feed only in moderation
Safe amount
Best avoided; never sugar-free
Species
🐶 Dogs
Why this verdict for dogs
Plain marshmallows are pure sugar and gelatin, and sugar-free ones may contain deadly xylitol. Best avoided.
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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 →
Related foods
By the CanMyPet Editorial Team · Reviewed against ASPCA Animal Poison Control, the American Kennel Club (AKC) and Pet Poison Helpline · Last updated June 2026.
Sources
- ASPCA — People Foods to Avoid Feeding Your Pets
- American Kennel Club — Dog Nutrition
- Pet Poison Helpline — Poison List
CanMyPet provides general information reviewed against trusted sources (ASPCA, AKC, Pet Poison Helpline). It is not a substitute for professional veterinary advice. When in doubt, always contact your veterinarian.