Can Dogs Eat Cinnamon?

Conditional: small amounts of ground cinnamon are safe for most dogs, but cassia cinnamon (high in coumarin), inhalation, and cinnamon oil pose risks. Know safe serving sizes and emergency steps.

CONDITIONAL: Dogs can eat small amounts of ground cinnamon occasionally, but there are important cautions — especially about cassia cinnamon (high coumarin), inhaled powder, and concentrated cinnamon oils.

Quick Safety Summary

- Small amounts of ground cinnamon (a pinch or light sprinkle) are generally safe for most dogs.

- Avoid daily or large amounts of cassia cinnamon because of coumarin-related liver risk.

- Keep powdered cinnamon away from the nose and lungs (inhalation can cause coughing, sneezing, and airway irritation).

- Never give cinnamon oil/essential oil to a dog — it’s concentrated and can cause toxicity and severe irritation.

- For poisoning concerns call ASPCA Poison Control: (888) 426-4435 or contact your veterinarian/ER immediately.

How cinnamon affects dogs: overview

Cinnamon is a spice derived from tree bark. The two main commercial types are:

• Cassia cinnamon (commonly sold in supermarkets in the U.S.) — stronger flavor, higher coumarin content.
• Ceylon cinnamon ("true" cinnamon) — milder flavor, much lower coumarin levels.

Nutritional snapshot (approximate, per 1 teaspoon ground cinnamon = ~2.6 g)

• Calories: ~6–7 kcal
• Carbohydrates: ~2 g (mostly fiber)
• Dietary fiber: ~1.3–1.4 g
• Sugars: <0.5 g
• Micronutrients (trace): manganese (~0.25–0.4 mg), calcium, iron in small amounts

(Values are typical USDA-style estimates for ground cinnamon.)

Safety: when small amounts are OK

• Occasional small amounts (a light sprinkle or pinch) used as a flavor in a meal or homemade treat are unlikely to harm a healthy dog.
• Start with tiny amounts to check for GI upset or allergic reaction — some dogs may drool, vomit, or have diarrhea.
• If your dog has liver disease, frequent cinnamon exposure — especially cassia — should be avoided or discussed with your veterinarian.

• Dogs under 10 lb (4.5 kg): a pinch (<1/8 teaspoon)
• Dogs 10–25 lb (4.5–11 kg): up to 1/8 teaspoon
• Dogs 25–50 lb (11–23 kg): up to 1/4 teaspoon
• Dogs >50 lb (23+ kg): up to 1/2 teaspoon, occasionally

Coumarin concerns in cassia cinnamon

Cassia cinnamon often contains higher amounts of coumarin, a naturally occurring compound that can cause liver toxicity in sensitive individuals and at higher cumulative doses. Regulatory bodies (e.g., EFSA) have set a tolerable daily intake for humans (0.1 mg/kg body weight/day). Dogs can also be susceptible to coumarin hepatotoxicity, and regular, repeated feeding of cassia cinnamon could increase risk of liver injury.

Key points:

• Cassia has substantially more coumarin than Ceylon cinnamon; if you plan to give cinnamon regularly, choose Ceylon.
• Because commercial cassia coumarin levels vary and dogs are more sensitive to some toxins than humans, avoid habitual or high-dose feeding of cassia cinnamon.
• If your dog shows signs of liver disease (loss of appetite, jaundice, vomiting, lethargy, dark urine), stop cinnamon and see a veterinarian.

Inhalation risks (powder and the "cinnamon challenge")

Cinnamon powder is dusty and can irritate the airways. If a dog inhales a large amount of dry powdered cinnamon (for example, spilled jar, or someone dumping powder near the face), you may see:

• Coughing, gagging, sneezing
• Difficulty breathing, rapid breathing
• Pawing at the face or increased salivation
• Eye irritation if powder contacts the eyes

Cinnamon essential oil and cinnamon-flavored extracts (dangerous)

Cinnamon essential oil is highly concentrated and contains chemicals (e.g., cinnamaldehyde) that are caustic and can cause severe problems in dogs:

• Gastrointestinal irritation: drooling, vomiting, diarrhea, abdominal pain
• Oral/dermal burns: burning sensation in mouth or on skin, redness, blistering
• Central nervous system signs at higher doses: tremors, lethargy
• Liver stress/toxicity with systemic absorption

If your dog licks or ingests a product containing cinnamon oil, call ASPCA Poison Control at (888) 426-4435 and/or your veterinarian immediately. If the exposure is to the eyes or skin, rinse with copious water and seek veterinary care.

When to seek veterinary care — emergency response

If your dog has eaten a large amount of ground cinnamon, ingested cinnamon oil, inhaled heavy dust, or shows any of the following, contact your veterinarian or ASPCA Poison Control (888) 426-4435 right away:

• Repeated vomiting or persistent diarrhea
• Drooling, oral pain, or visible burns in the mouth
• Difficulty breathing, persistent coughing, or wheezing
• Tremors, seizures, collapse, severe lethargy
• Any signs of liver dysfunction (jaundice, dark urine, severe lethargy)

Practical recommendations for pet owners

• If you want to use cinnamon for occasional flavoring, use Ceylon cinnamon if possible and keep amounts small.
• Avoid daily cinnamon-containing treats made with cassia.
• Store cinnamon spice jars and essential oils securely out of reach.
• Never apply cinnamon oil or essential oils to your dog’s skin or let them ingest oils.
• If baking for dogs, use recipes formulated for pets and avoid adding strong spices in large amounts.

References and reputable sources

• ASPCA Animal Poison Control: https://www.aspca.org/pet-care/animal-poison-control
• American Veterinary Medical Association (AVMA) — statements on essential oils and pet safety: https://www.avma.org/
• Merck Veterinary Manual — toxicology and common household hazards: https://www.merckvetmanual.com/

Key Takeaways

• Conditional: small amounts of ground cinnamon are generally safe for most dogs if used occasionally and in tiny amounts.
• Cassia cinnamon contains coumarin and should be avoided as a regular dietary addition; choose Ceylon if you plan frequent use.
• Powder inhalation can irritate airways — avoid dumping or blowing cinnamon near a dog’s face.
• Cinnamon essential oil is concentrated and potentially toxic; it should never be given to or applied to dogs.
• For any suspected poisoning or severe symptoms call ASPCA Poison Control at (888) 426-4435 or seek veterinary emergency care.

Frequently Asked Questions