Cinnamon Science

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Explore the science behind true cinnamon

Know what is in your cinnamon.

You deserve more than a beautiful label. Discover what makes Sri Lankan Ceylon cinnamon different, what researchers are studying, and how to enjoy it responsibly—without exaggerated promises.

Discover true cinnamon

Your simple guide

True cinnamon begins with the right species.

Ceylon cinnamon is Cinnamomum verum, the “true cinnamon” grown primarily in Sri Lanka. It is botanically different from cassia, the stronger and more common cinnamon found in many markets.

Ceylon cinnamon

Delicate, layered and naturally low in coumarin

Thin, hand-rolled quills create a soft citrus-floral aroma and a refined sweetness suited to food and drinks.

Cassia cinnamon

Bolder, thicker and generally higher in coumarin

Cassia has a sharper flavour and a different chemical profile. Species identity matters when comparing products or research.

From our estate to your table

Purity you can understand.

Single estate

Our cinnamon comes from one known origin in Sri Lanka, supporting traceability from tree to finished quill.

Hand-rolled craft

Skilled artisans peel and roll the inner bark into delicate Alba-grade quills.

Nothing unnecessary

One ingredient: 100% Ceylon cinnamon. No fillers, artificial colours or flavouring.

Health research, honestly explained

What science is exploring

Cinnamon contains aromatic and plant compounds, including cinnamaldehyde and polyphenols. Researchers study cinnamon in areas such as antioxidant activity and metabolic health. However, the evidence is mixed, studies often use different species and preparations, and research does not clearly support cinnamon as a treatment for any health condition.

Antioxidants

Plant compounds under study

Laboratory research examines how cinnamon compounds interact with oxidation. This does not prove a clinical benefit in people.

Blood sugar

Interesting, but not established treatment

Studies of cinnamon supplements have produced difficult-to-interpret results. Cinnamon must not replace prescribed medicine or professional advice.

Everyday food

A spice, not a cure

The clearest role for cinnamon is culinary: aroma, flavour and enjoyment as part of a balanced diet.

The honest answer: Ceylon cinnamon is a distinctive food with an appealing composition—not a medicine, miracle ingredient or guaranteed health solution.
Enjoy it with confidence

Three responsible steps

Check the species

Look for Cinnamomum verum or Ceylon cinnamon on the label.

Use culinary amounts

Sprinkle into tea, coffee, oats, fruit, baking and savoury dishes.

Ask when unsure

If pregnant, breastfeeding, managing a medical condition or taking medicine, speak with a qualified healthcare professional before using large or supplemental amounts.

Read the evidence

Trusted research starting point

For an independent overview of cinnamon’s identity, research limits and safety, visit the U.S. National Center for Complementary and Integrative Health (NCCIH).

Educational information only. This page does not diagnose, treat, cure or prevent disease. Product composition can vary, and research on one cinnamon species or preparation may not apply to another.

Ransiya Ceylon Cinnamon

Choose true cinnamon with a story you can trace.

Rooted in Sri Lanka. Handcrafted with care. Shared with honesty.

Explore our cinnamon

Clear, evidence-based information

Potential Health Benefits of Ceylon Cinnamon

Ceylon cinnamon contains natural plant compounds being studied for several possible health benefits. Research is promising in some areas, but cinnamon is a food—not a medicine—and results vary between studies.

Laboratory evidence

1. Rich in Antioxidant Compounds

Ceylon cinnamon contains polyphenols and aromatic compounds with antioxidant activity. Antioxidants help protect cells from oxidative stress, but this does not mean cinnamon prevents disease.

Mixed human evidence

2. May Support Healthy Blood-Sugar Metabolism

Some human studies suggest cinnamon may modestly support fasting blood glucose and insulin sensitivity. Results remain inconsistent, and cinnamon is not a diabetes treatment.

Emerging clinical evidence

3. May Support Heart-Health Markers

Research has examined possible effects on triglycerides, cholesterol and blood pressure. Some studies report small improvements, although stronger research is still needed.

Limited human evidence

4. Compounds Studied for Inflammatory Response

Cinnamon's natural compounds demonstrate anti-inflammatory activity in laboratory research. Evidence of meaningful benefits in people remains limited.

Mainly laboratory evidence

5. Antimicrobial Activity in Laboratory Studies

Cinnamon oils and extracts have shown activity against certain bacteria and fungi in laboratories. Eating cinnamon does not treat infections.

Small average effects

6. May Complement Weight Management

Some studies report small changes in weight or waist measurements. Cinnamon can add aroma and sweetness without sugar, but it is not a weight-loss treatment.

Established species difference

7. Naturally Low in Coumarin

True Ceylon cinnamon generally contains much less coumarin than cassia, making it a more suitable choice for regular culinary use. It should not be called completely coumarin-free.

Preliminary human evidence

8. Early Research into Reproductive Health

One small trial in women with polycystic ovary syndrome reported improved menstrual-cycle regularity. Evidence remains insufficient to conclude that cinnamon improves fertility, libido or sexual performance.

Important: These are potential benefits being investigated—not treatment claims. Cinnamon should not replace medical care. Sources: NCCIH overview and the small PCOS clinical trial.
Preparing a cup of Ceylon cinnamon tea