PlantFunNorthern Red Oak Toxic?
All plant parts contain toxic tannins, with concentrations up to 20% of dry weight in bark; unripe fruits are more toxic than ripe fruits.
Ruminants develop kidney damage and gastrointestinal lesions after ingestion, while monogastric animals like horses show primarily GI symptoms within 24 hours of exposure.
Northern red oak wood dust is classified as a confirmed carcinogenic substance, posing risk via inhalation.
FAQ
Is Northern Red Oak toxic to Humans?
No specific ingestion toxicity data recorded; large intake may cause gastrointestinal irritation, and oak wood dust is confirmed carcinogenic. (Moderate)
Is Northern Red Oak toxic to Cats?
No specific toxicity or symptom data available for cats; ingestion may cause mild digestive upset. (Unknown)
Is Northern Red Oak toxic to Dogs?
No specific toxicity or symptom data available for dogs; ingestion may cause mild digestive upset. (Unknown)
Is Northern Red Oak toxic to Horses?
Gastrointestinal symptoms appear within 24 hours of ingestion, which may progress to weakness, bloody diarrhea, abnormal heart rate, edema and kidney damage in severe cases. (Moderate)
Toxicity Details
No specific ingestion toxicity data recorded; large intake may cause gastrointestinal irritation, and oak wood dust is confirmed carcinogenic.
No specific toxicity or symptom data available for cats; ingestion may cause mild digestive upset.
No specific toxicity or symptom data available for dogs; ingestion may cause mild digestive upset.
Gastrointestinal symptoms appear within 24 hours of ingestion, which may progress to weakness, bloody diarrhea, abnormal heart rate, edema and kidney damage in severe cases.
Toxicity Snapshot
First Aid & Prevention
First 30 Minutes
- • Remove all remaining plant material from the patient's mouth and surrounding area immediately.
- • If ingestion occurred within 2 hours and the patient is conscious, induce vomiting only as directed by a medical or veterinary professional.
- • Avoid giving food, milk or other dairy products that may increase tannin absorption until advised by a professional.
Contact Vet Immediately
- • Any confirmed ingestion of large quantities of northern red oak plant parts by pets or livestock.
- • Appearance of symptoms including digestive distress, abnormal urine color, lethargy, or edema after exposure.
- • Inhalation of large amounts of oak wood dust with associated respiratory symptoms.
Prevention
- • Keep fallen leaves, acorns and pruned oak branches out of reach of pets and livestock.
- • Use appropriate respiratory protection when cutting, sanding or processing oak wood to avoid dust inhalation.
- • Avoid grazing livestock in pastures with dense northern red oak populations, especially during acorn fall or bud break seasons.
Treatment & Prognosis
- • Gastrointestinal decontamination (e.g. activated charcoal administration) to reduce tannin absorption.
- • Symptomatic supportive care including fluid therapy to support kidney function and correct electrolyte imbalances.
- • Targeted treatment of gastrointestinal lesions and other secondary symptoms as they develop.
- • Regular monitoring of kidney and liver function for 2-7 days post-exposure in severe cases.
Professional Toxicology
• Toxic effects are caused by tannins and their metabolic breakdown products.
• Tannins cause direct irritation to gastrointestinal mucosa, while their metabolites damage kidney tubular cells in susceptible ruminant species.
Information from CliniTox veterinary text.
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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.