TL;DR: Mycotoxin poisoning from moldy food is a life-threatening emergency for dogs that requires immediate veterinary care to prevent severe neurological damage. Seek help immediately and, if possible, take a photo of the moldy substance to help your vet identify the toxin.
What is mycotoxin poisoning in dogs and how does it happen?
When a dog ingests moldy food—often found in trash cans, compost piles, or forgotten leftovers—they are at risk of consuming tremorgenic mycotoxins. These are toxic substances produced by certain fungi that specifically target a dog's central nervous system, leading to potentially life-threatening reactions.
Is mycotoxin poisoning in dogs a medical emergency?
Yes, this is a High Urgency emergency. Immediate veterinary intervention is required to stabilize your dog and prevent long-term neurological damage or death. Watch for symptoms that escalate rapidly, including:
- Vomiting
- Severe muscle tremors
- Staggering or loss of coordination
- Full-body seizures
How can taking a photo of the moldy food help my veterinarian?
If it is safe to do so, providing visual evidence can speed up the triage and diagnostic process. Before heading to the clinic:
- Take a clear photo of the moldy food your dog consumed.
- Show this photo to the veterinarian or triage assistant to help identify the mold type and exposure severity.
- Identify if the mold was on bread, cheese, or compost to provide valuable context for treatment.
Clinical Context (Merck Veterinary Manual)
Dogs are most commonly involved in food hazards due to their indiscriminate eating habits. Moldy food ingestion can lead to clinical signs such as unproductive attempts at emesis and abdominal distention. If ethanol intoxication develops, the animal may become ataxic and disoriented, potentially progressing to profound CNS depression, weakness, recumbency, coma, hypothermia, or seizures. Diagnosis is based on history of exposure and clinical signs. Emesis may be attempted with recent ingestions in asymptomatic animals, although the glutinous nature of some materials may make removal via emesis difficult.
Chapter: Toxicology, Emergency
Source: The Merck Veterinary Manual, 11th Edition (Page 2966)