Cinnamomum verum

Cinnamon

Lauraceae

Evidence: ConflictingCaffeine Free Sri LankaDigestive ComfortEnergyMorning Blends

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Identity

Common Name: Cinnamon
Scientific Name: Cinnamomum verum
Botanical Family: Lauraceae
Native Region: Sri Lanka (Ceylon) and southern India
Cultivation Regions: Sri Lanka, India, Indonesia, China, Vietnam
Plant Parts Used: Bark
Synonyms: Ceylon Cinnamon, True Cinnamon, Cassia (related)
Caffeine Level: Caffeine Free

An evergreen tree 10-15 m tall with leathery, glossy, opposite lance-shaped leaves bearing three prominent parallel veins, small pale-yellow flowers in panicles, and the aromatic inner bark that is stripped, fermented, and dried into quills.

Historical Background

Cinnamon has been one of the most valued spices for over 4,000 years, traded along ancient routes from Sri Lanka to Egypt, Rome, and China. In Ayurveda and TCM it is a warming digestive and circulatory stimulant; in Europe it flavored everything from mulled wine to medicinal cordials.

Earliest recorded uses: Recorded in ancient Egyptian, Chinese, and Sanskrit texts; among the most prized spices of antiquity.

Traditional preparations:

Bark decoction
Spiced chai base
Powder infused in hot water

Traditional Uses

These uses document historical traditions and do not imply proven effectiveness.

Ayurveda

Warming digestive and circulatory stimulant; cold-season spice tea.

Traditional Chinese Medicine

Warming, Qi-moving spice for digestion and circulation.

Modern Herbalism

Blood-sugar support tradition (modest, conflicting evidence).

Flavor & Aroma

SweetSpicyWarmingWoody

Aroma: Sweet, warm, woody-spicy

Tea Information

Suitable for Tea

Yes

Preparation Methods

Decoction, Infusion

Steeping Temperature

200°F (93°C)

Steeping Time

10 minutes (decoction for bark)

Recommended Vessel

Saucepan (decoction) or teapot

Blends Well With

Cardamom, Clove, Ginger, Black Tea, Honey

200°F (93°C) 10 minutes (decoction for bark)

Safety & Cautions

Contraindications

Cassia cinnamon contains coumarin — high or prolonged intake may harm the liver; choose Ceylon cinnamon if using regularly. Avoid large doses in pregnancy and liver disease.

Drug Interactions

May affect blood sugar and blood clotting — caution with antidiabetic and anticoagulant medications; consult a clinician.

Pregnancy

Culinary amounts acceptable; avoid medicinal doses.

Children

Culinary spice-tea amounts acceptable.

Allergies

Rare; possible in those sensitive to Lauraceae (cinnamon, bay).

Known Adverse Effects

Generally well tolerated in culinary amounts; cassia-type high doses may irritate mouth or affect liver.

Research Summary

Evidence Level: Conflicting

Cinnamon has a long tradition as a warming digestive and circulatory herb. Trials on blood-sugar lowering in type 2 diabetes show inconsistent, modest results; evidence is conflicting and not a substitute for medication. Coumarin content in cassia is a safety consideration for regular use.

Evidence levels reflect the currently available scientific literature and may change as new research emerges. Where evidence is limited or conflicting, this is stated plainly.

References & Sources

NCCIH · Cinnamon (2023)
Cochrane · Cinnamon for diabetes mellitus (review) (2023)

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