Cinnamon
Generally Safe

Cinnamon

Cinnamomum verum / Cinnamomum cassia
Ceylon CinnamonTrue CinnamonCassia Cinnamon

Important Disclaimer

This is not medical advice. Consult a qualified healthcare provider before using any remedy, especially if pregnant, breastfeeding, on medication, or managing a health condition.

Overview

Cinnamon is one of the oldest and most prized spices in the world, derived from the inner bark of Cinnamomum trees. Two main types are used medicinally: Ceylon cinnamon (C. verum) from Sri Lanka, and Cassia cinnamon (C. cassia) from China. Both have significant medicinal properties, but Ceylon cinnamon is preferred for therapeutic use due to its lower coumarin content. Cinnamon is most celebrated for its blood sugar-regulating, antimicrobial, and anti-inflammatory properties.

Traditional Use

Cinnamon has been used medicinally for over 4,000 years. Ancient Egyptians used it in embalming and as a medicine. It was one of the most valuable spices in the ancient world — mentioned in Chinese writings from 2700 BC and in the Bible. In Ayurvedic medicine, cinnamon (Tvak) is used to improve digestion, circulation, and as a warming herb. Traditional Chinese medicine uses cinnamon bark (Rou Gui) to warm the kidneys and dispel cold.

Key Active Compounds

Cinnamaldehyde

The primary volatile oil (60–90% of essential oil) responsible for cinnamon's characteristic flavor and aroma. Has antimicrobial, anti-inflammatory, antidiabetic, and antifungal properties.

Cinnamic Acid

A phenolic compound with antioxidant, anti-inflammatory, and potential neuroprotective properties.

Procyanidins (Type-A)

Polyphenols that enhance insulin signaling by activating insulin receptors and improving glucose uptake in cells. Primary compounds responsible for blood sugar-lowering effects.

Coumarin

Present in high amounts in Cassia cinnamon; potentially hepatotoxic at high doses. Ceylon cinnamon contains very low levels — preferred for therapeutic use.

Evidence-Based Benefits

Blood sugar regulation

Moderate evidence

Multiple clinical trials show cinnamon supplementation significantly reduces fasting blood glucose (by 10–29%), HbA1c, and insulin resistance in type 2 diabetes.

Antimicrobial activity

Moderate evidence

Cinnamaldehyde has broad-spectrum antimicrobial activity against bacteria, fungi (including Candida), and viruses. Effective against food-borne pathogens and oral bacteria.

Anti-inflammatory and antioxidant

Moderate evidence

Cinnamon polyphenols inhibit NF-κB and reduce inflammatory cytokines. High antioxidant capacity reduces oxidative stress markers in clinical studies.

Cardiovascular support

Some studies

Studies show cinnamon reduces total cholesterol, LDL, and triglycerides while increasing HDL. May improve blood pressure and reduce cardiovascular disease risk factors.

Common Preparation Methods

Cinnamon Tea

Simmer one 3-inch Ceylon cinnamon stick in 2 cups of water for 15 minutes. Or steep 1 teaspoon of ground cinnamon in hot water for 10 minutes. Strain and drink.

Dosage: 1–3 cups daily

Use Ceylon cinnamon for regular therapeutic use to avoid coumarin accumulation from Cassia.

Cinnamon Capsules

Take standardized Ceylon cinnamon extract capsules with meals.

Dosage: 1–6 grams daily in divided doses with meals

Most studied dose for blood sugar is 1–3g daily. Use Ceylon cinnamon to minimize coumarin exposure.

Culinary Use

Add 1/2–1 teaspoon of ground cinnamon to oatmeal, smoothies, coffee, yogurt, or baked goods daily.

Dosage: 1/2–1 teaspoon daily

Consistent daily culinary use provides meaningful health benefits.

Cinnamon Honey Paste

Mix 1 teaspoon of ground cinnamon with 1 tablespoon of raw honey. Take directly or dissolve in warm water.

Dosage: 1 teaspoon daily

Traditional remedy for colds, sore throat, and digestive complaints.

Safety & Cautions

Please read carefully before use

Contraindications

  • Liver disease: avoid high doses of Cassia cinnamon (high coumarin)
  • Pregnancy: avoid high medicinal doses
  • Bleeding disorders: may increase bleeding risk
  • Surgery: stop 2 weeks before

Drug Interactions

  • Diabetes medications: may enhance blood sugar-lowering effects (monitor blood sugar)
  • Anticoagulants: may increase bleeding risk
  • Liver medications: coumarin in Cassia may affect liver

Possible Side Effects

  • Mouth sores with excessive direct contact
  • Digestive upset at high doses
  • Liver damage with very high doses of Cassia cinnamon (coumarin)
  • Rare allergic reactions

Special Populations

  • Pregnancy: safe as food spice; avoid high-dose supplements
  • Diabetics: monitor blood sugar closely when using medicinally
  • Liver disease: use Ceylon cinnamon only
  • Children: safe as food spice

Quick Reference

Family / Type:

Lauraceae

Parts Used:

Inner bark, Essential oil, Leaves

Taste / Profile:

Warm, sweet, spicy, slightly woody

Safety First

Always consult with a qualified healthcare provider before starting any new remedy, especially if you have existing health conditions or take medications.