Why it's dangerous
The dough expands in the stomach causing physical distension or GDV, while yeast fermentation produces alcohol leading to systemic ethanol poisoning.
Toxic compound: Ethanol
Good to know
The expansion of dough can lead to Gastric Dilatation-Volvulus (GDV), which is a life-threatening emergency.
Sources
This page is informational and is not veterinary advice. If your pet has been exposed to something risky, contact your vet or an animal poison control line right away.