Last reviewed: August 2026

Can Dogs Eat Marshmallows?

ModerateCheck for Xylitol

Regular marshmallows in a small amount aren't classically toxic, but they're pure sugar with no nutritional benefit, and sugar-free versions increasingly use xylitol.

Why

Standard marshmallows are essentially sugar and gelatin — not dangerous in a small amount, but offering no benefit either. The real risk has grown with sugar-free and 'diet' marshmallow products, which are increasingly likely to use xylitol as a sweetener.

How to serve it safely

Always check for xylitol on any sugar-free or diet marshmallow product
Regular marshmallows are lower risk but still not a good regular treat given the sugar content

Sources

General veterinary toxicology consensus, cross-referenced against the Merck Veterinary Manual and ASPCA Animal Poison Control Center food hazard references. See How We Source This for our methodology.

This page is general educational information, not a substitute for veterinary advice.