Safety verdict
Consulted references classify the plant as toxic or irritating for that pet type.
Pet ingestion lookup
My cat ate Mint - what should I do?
Mentha sp.
Potentially toxic
Contact your veterinarian or an animal poison-control resource now, especially if any amount was chewed or swallowed.
Verified against ASPCA/provenance audit 2026-05-06 on May 6, 2026.
Signs to watch for
Vomiting, diarrhea, and potential lethargy.
Escalation note
Ingestion of large quantities may cause gastrointestinal upset. Please contact your veterinarian if your cat shows signs of distress after ingestion.
What to watch for
Most common with leaf ingestion: vomiting and diarrhea, especially with larger amounts. Watch additionally for drooling, lethargy, or unsteadiness if your cat got into mint essential oil rather than fresh leaves — those exposures can progress to tremors, low body temperature, or breathing difficulty.
Time window
GI signs from leaf ingestion typically appear within a few hours and resolve in 24–48 hours with supportive care. Essential-oil exposures can cause signs more quickly. ASPCA does not give specific timing for fresh-mint ingestion.
When to call the vet
Call your vet or ASPCA APCC (888-426-4435) if your cat ate a large amount of fresh mint, has repeated vomiting or diarrhea, or got into peppermint or other mint essential oils. A single grazed leaf with no symptoms can usually be watched at home.
What this means for your cat
Garden mint is listed as toxic to cats by the ASPCA, with essential oils as the toxic principle. A leaf or two grazed in the garden usually causes nothing worse than mild GI upset, but cats are unusually sensitive to mint-family essential oils — they lack a key liver enzyme to metabolize them — so concentrated exposures (essential oils, large ingestions of fresh leaves) are riskier for cats than for dogs.
Sources: ASPCA (no first-aid guidance).
Poison-control resources
This page summarizes source-bound plant-safety information and is not veterinary advice.