Taro Toxic?

Updated 2026-03-06| 4 min read| 4,829 found this helpful
Taro
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Taro is confirmed toxic to cats and dogs, while its toxicity risk to horses remains unconfirmed

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Its primary toxic component, per ASPCA data, is insoluble calcium oxalate crystals

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Oral contact or ingestion triggers immediate irritation and related clinical symptoms in sensitive species

FAQ

Is Taro toxic to Humans?

Oral irritation, intense burning of the mouth, tongue and lips, excessive salivation, vomiting, difficulty swallowing (Moderate)

Is Taro toxic to Cats?

Oral irritation, intense burning and irritation of mouth, tongue and lips, excessive drooling, vomiting, difficulty swallowing (Moderate)

Is Taro toxic to Dogs?

Oral irritation, intense burning and irritation of mouth, tongue and lips, excessive drooling, vomiting, difficulty swallowing (Moderate)

Is Taro toxic to Horses?

Toxicity risk unconfirmed; monitor for oral irritation, drooling, vomiting and swallowing difficulty if exposure occurs (Unknown)

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Toxicity Details

Humans
Moderate

Oral irritation, intense burning of the mouth, tongue and lips, excessive salivation, vomiting, difficulty swallowing

Cats
Moderate

Oral irritation, intense burning and irritation of mouth, tongue and lips, excessive drooling, vomiting, difficulty swallowing

Dogs
Moderate

Oral irritation, intense burning and irritation of mouth, tongue and lips, excessive drooling, vomiting, difficulty swallowing

Horses
Unknown

Toxicity risk unconfirmed; monitor for oral irritation, drooling, vomiting and swallowing difficulty if exposure occurs

Toxicity Snapshot

Toxic PartsAll raw plant parts (leaves, stems, tubers); fully cooked tubers are non-toxic for human consumption
Exposure RouteOral ingestion, direct contact of oral mucosa with raw plant tissue or sap
Toxic CompoundsInsoluble calcium oxalates

First Aid & Prevention

First 30 Minutes

  • • Immediately remove any remaining plant material from the mouth, then rinse the mouth thoroughly with cool clean water
  • • Offer small amounts of milk or plain water to dilute oxalate crystals if the affected individual is alert and able to swallow
  • • Monitor closely for signs of airway swelling, breathing difficulty or persistent pain

Contact Vet Immediately

  • • If the affected pet shows excessive drooling, persistent vomiting or visible oral swelling
  • • If the pet experiences difficulty swallowing or breathing after exposure
  • • If a large quantity of raw plant material was ingested

Prevention

  • • Keep potted taro plants, cuttings and raw tubers out of reach of pets and young children
  • • Always cook taro thoroughly before human consumption to break down toxic calcium oxalate crystals
  • • Label potted taro plants clearly to avoid accidental ingestion by household members

Treatment & Prognosis

  • • Supportive care including fluid administration to address dehydration from drooling or vomiting
  • • Prescription anti-inflammatory or antihistamine medications to reduce oral swelling and irritation
  • • Airway monitoring and support in severe cases of pharyngeal swelling
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Professional Toxicology

Scientific NameColocasia esculenta
AliasesCaladium、Elephant's Ears、Malanga
Toxicity Grade
HumansModerate
CatsModerate
DogsModerate
HorsesUnknown
Target Organs
Oral mucosaTongueLipsPharynxUpper gastrointestinal tract
Mechanism of Action

• Insoluble calcium oxalate crystals penetrate soft mucosal tissue of the mouth, throat and digestive tract upon contact, causing immediate pain, irritation and swelling

Other Species Risk (CliniTox)

Information from CliniTox veterinary text.

Cattle: Ingestion of raw plant parts can cause oral and gastrointestinal irritation
Small companion mammals (rabbits, guinea pigs): High risk of severe oral irritation and potential digestive blockage from raw plant ingestion
Confusion Risk

The following plants look similar and may be confused:

Giant Upright Elephant Ear Alocasia odora
Visually similar due to large, broad heart-shaped leaves; differs by upright growth habit and glossier foliage, and also contains toxic insoluble calcium oxalates
Yellow Malanga Xanthosoma sagittifolium
Often marketed interchangeably as malanga; differs by arrow-shaped leaves and yellow-hued tubers, and carries the same oxalate toxicity risk as taro
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Data Sources

This information is for reference only and does not constitute medical advice. If ingestion or poisoning is suspected, seek medical or veterinary attention immediately.

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