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Cinnamon (Ceylon)

Also known as true cinnamon, Ceylon cinnamon, Cinnamomum verum, canela, dalchini, kurundu

Quick answer

The dried inner bark of Cinnamomum verum, native to Sri Lanka, rolled into fragile multi-layered quills. It is markedly more delicate, sweeter and more citrus-floral than the cassia sold as cinnamon in much of the world.

Tastes of
sweet, floral, citrus, delicate, warm
Heat
Scoville does not apply
If you have none
Cassia — see the limits

Forms

Where the forms of a spice differ enough to need separate answers, they get them. Most spices do not appear here; these do because treating their forms as interchangeable produces a dish that is wrong.

Quills

Ceylon cinnamon is sold as quills: multiple thin layers of soft bark rolled together, like a cigar. This is the reliable way to tell it from cassia, which forms a single thick hard curl.

Flavour:

Delicate, layered and faintly citric, released slowly into liquid. Ceylon quills give a gentler and more complex result than cassia bark, and are easily lost in a robustly spiced dish.

Culinary conventionFollows from the composition recorded in the sensory section, and from the low cinnamaldehyde content relative to cassia.
Aroma:

Delicate, floral and sweet, with a citrus lift that cassia does not have — the quill should smell light rather than hot. This is one of the two reliable ways to tell the barks apart without cutting them: cassia smells assertive and almost spicy-hot from its higher cinnamaldehyde, and Ceylon smells perfumed. A quill that smells of very little has lost its eugenol and linalool and will infuse poorly, whatever it looks like.

Strong evidenceSources: Chemistry of Spices
How to use it:

Infuse whole in liquid and remove. Unlike cassia, Ceylon quills are soft enough to break by hand and to grind in a domestic grinder, which is one of the few practical advantages the more expensive spice has.

Culinary conventionEstablished kitchen practice, and the quill-versus-curl test is the standard way the two barks are distinguished in the trade.

Not interchangeable with ground

A quill infusing in liquid and a spoon of ground cinnamon do different jobs. The quill perfumes and can be removed; the ground spice stays, thickens slightly and clouds. Where a recipe specifies a quill for a syrup or a poaching liquid, ground cinnamon will make it gritty.

Ground Ceylon cinnamon

Paler and tan-brown rather than the red-brown of ground cassia, and much milder. Most supermarket ground "cinnamon" is cassia; ground Ceylon is usually sold as such and priced accordingly.

Flavour:

Mild, sweet and complex, without the sharp bite cassia carries. In a recipe expecting cassia it will read as underpowered rather than as a subtler version.

Culinary conventionFollows from the lower cinnamaldehyde content recorded in the sensory section.
How to use it:

Usable in larger quantities than cassia, which is a genuine consideration for anyone limiting coumarin intake. Add to batters and doughs at the start; add to finished dishes at the end.

Culinary conventionEstablished kitchen practice, and the quill-versus-curl test is the standard way the two barks are distinguished in the trade.

Other names

What this spice is called elsewhere, and where the translation is not clean.

Names:
  • dalchiniदालचीनी

    Hindi

    Dalchini is used in South Asia for cassia far more often than for true cinnamon, because cassia is what the market sells.

  • canela

    Spanish

  • qirfa

    Arabic

  • kayu manis

    Indonesian

    Literally "sweet wood". In Indonesia this ordinarily means Indonesian cassia rather than Ceylon cinnamon.

  • tarçın

    Turkish

Culinary conventionNames in common use rather than a formal translation, recorded because "what is this called in ___" is one of the most-searched shapes about spices and because the ambiguities noted here send people home with the wrong ingredient.

Flavour and aroma

Flavour:

Sweet and mild with little astringency, and a lingering finish. It does not have the punchy, almost hot bite of cassia, which is exactly why it suits delicate applications and disappoints anyone expecting a cinnamon bun.

Strong evidenceSources: Chemistry of Spices
Aroma:

Delicate, sweet and complex, with citrus and floral lift over the familiar warm-sweet base. Where cassia announces itself, Ceylon cinnamon unfolds.

Colour:

Pale tan to light brown quills; the ground spice is a light warm brown, noticeably paler than ground cassia.

Reasonable evidenceSources: Handbook of Herbs and Spices
Texture:

Quills are brittle and layered, and crumble readily — they can be broken by hand and ground in a domestic grinder, unlike hard cassia bark.

Culinary conventionA practical distinction any cook encounters immediately.

Heat

Pungency scale: none — this spice is not pungent

Scoville: Not applicable — No capsaicinoids are present; Scoville does not apply.
In practice:

No pungency. The "warmth" of cinnamon is an aroma character.

Culinary conventionA standard distinction in sensory description of spices.
Key compounds:
  • Cinnamaldehyde — The principal aroma compound of cinnamon bark, though present at a lower proportion than in cassia.(what cinnamaldehyde is)
  • Eugenol — Present in Ceylon cinnamon and largely absent from cassia; contributes a clove-like warmth and much of the difference between the two.(what eugenol is)
  • Linalool — Floral and citrus lift.(what linalool is)
Strong evidenceSources: Chemistry of Spices

The eugenol content is the most useful compositional marker distinguishing Ceylon cinnamon from cassia.

Pairings

Ranked by how well established the combination is, with the reason and the caveats attached.

Foods

Canela with chocolate is standard in Mexican cooking, in drinking chocolate and in mole. Ceylon cinnamon is used specifically, and its delicacy suits chocolate better than cassia's bite.

Add alongside: Cayenne pepper, Vanilla

Documented in cuisineMexicanSpanishSources: Established culinary practice

Vanilla is referenced here as a traditional companion and is not yet profiled in the dataset.

Lamb

Classic

A defining combination in Moroccan tagines, Levantine rice-and-lamb dishes and Greek cooking. Cinnamon's sweetness balances lamb's fat and its slightly gamey character in a way that no Western pairing convention would predict.

Add alongside: Cumin, Apple, Saffron

Pumpkin

Classic

The pumpkin-and-warm-spice combination is thoroughly established in North American baking and works because squash sugars and cinnamon's sweet aromatics reinforce one another. It also works in savoury contexts, which is less widely exploited.

Add alongside: Nutmeg, Green cardamom, Ginger

North African savoury cooking uses cinnamon in meat stews rather than in desserts, and a couscous served with such a stew is seasoned by it. Ceylon cinnamon rather than cassia, which is the Moroccan preference and reads lighter.

How: In a lamb or chicken tagine served over couscous

Documented in cuisineMoroccanSources: Established culinary practice

Squash

Situational

The pairing everyone reaches for and the one that needs most care. Cinnamon is warm and sweet and squash is already sweet, so together they push a vegetable decisively towards dessert — which is right for a pumpkin pie and wrong for a side dish. North American practice treats it as the default; most other cuisines do not.

How: In a pumpkin pie or a sweet squash dish; A very small amount alongside cumin in a tagine

Add alongside: Nutmeg, Ginger, Cloves

  • Recorded as situational because the default use of it is a dessert convention rather than a property of the vegetable.

Beef

Unusual but supported

Surprising to many Western cooks but long established: cinnamon appears in Greek beef stews such as stifado, in Moroccan tagines and in Vietnamese phở broth. Used in small quantity it reads as depth rather than as sweetness.

Add alongside: Star anise, Black pepper, Onion

  • The margin between "adds depth" and "tastes like pudding" is narrow. Use a single stick, not ground cinnamon.

Other spices and blends

A cornerstone of garam masala, of Middle Eastern blends and of Nordic baking. Cardamom's cool eucalyptus character and cinnamon's warm sweetness sit at opposite ends of the same aromatic range and produce a rounded whole. The answer to "does cinnamon work with cardamom?" is emphatically yes, in both sweet and savoury contexts.

Add alongside: Cloves, Nutmeg, Black pepper

Cloves

Classic

Among the most widely attested spice pairs in the world, running through garam masala, mixed spice, mulled wine, Mexican cooking and Middle Eastern blends. Cinnamon is broad, sweet and forgiving where clove is narrow, sharp and unforgiving, so cinnamon gives clove somewhere to sit.

Add alongside: Nutmeg, Green cardamom, Star anise

  • The ratio is the whole thing. Cinnamon tolerates being the larger part by a wide margin; clove does not, and a pairing described as balanced usually means several times more cinnamon than clove.

Recorded as a pair rather than as part of a blend because it holds in contexts where neither garam masala nor mixed spice is involved.

Ginger

Classic

The backbone of European warm-spice baking and of mixed spice, and equally at home in Moroccan tagines and masala chai. Ground ginger supplies pungency and cinnamon supplies sweetness, and the pairing is the reason both taste like winter to most people who grew up with them.

Add alongside: Cloves, Nutmeg, Green cardamom

  • This is the dried-ginger pairing. Fresh ginger with cinnamon is a different and much less established combination.

Nutmeg

Classic

The backbone of European sweet spicing and of every mixed-spice blend in this dataset. Cinnamon is aromatic and lengthening, nutmeg is richer and more resinous, and nutmeg is used at a fraction of the quantity — which is the part people get wrong when combining them from scratch.

How: Roughly four parts cinnamon to one part nutmeg

Add alongside: Cloves, Ginger, Allspice

  • Nutmeg is much stronger than its reputation suggests and turns soapy in quantity. Equal parts is not a blend, it is a nutmeg dish.

Aniseed

Strong

A Mediterranean and Middle Eastern baking pair, and one where the two are genuinely complementary rather than reinforcing: cinnamon is warm and woody, aniseed is sweet and cooling, and each stops the other reading as one-dimensional.

Add alongside: Cloves, Orange, Fennel seed

Sweet bark against sharp heat is a pattern that recurs from Ethiopia to Mexico to Morocco, and Ethiopian mixtures use Ceylon cinnamon rather than cassia — its lighter, more citric character survives beside a great deal of chilli where cassia's heavier sweetness would fight it.

How: In berbere and mitmita

Add alongside: Cloves, Korarima

  • Cassia in place of Ceylon cinnamon makes the mixture taste confectionery
Documented in cuisineEthiopianSources: Established culinary practice

Shares a blend

Spices that appear alongside cinnamon (ceylon) in the core of a governed blend. That is a record of established use rather than a recommendation, and it carries no proportions.

Black pepper

Together in Advieh, Baharat, Garam masala, Ras el hanout, Shawarma spice.

Cumin

Together in Advieh, Baharat, Garam masala, Ras el hanout, Shawarma spice.

Coriander seed

Together in Baharat, Garam masala, Ras el hanout, Shawarma spice.

Allspice

Together in Jerk seasoning, Shawarma spice.

Paprika

Together in Baharat, Shawarma spice.

Turmeric

Together in Advieh, Shawarma spice.

Garlic

Together in Jerk seasoning.

Korarima

Together in Mitmita.

Onion

Together in Jerk seasoning.

Dried rose

Together in Advieh.

Saffron

Together in Advieh.

Scotch bonnet

Together in Jerk seasoning.

Thyme

Together in Jerk seasoning.

Salt and savouriness

Cinnamon (Ceylon) shares a blend with salt, which is a different kind of fact from the combinations above. It supplies a basic taste and essentially no aroma, so there is nothing for cinnamon (ceylon) to harmonise with or clash against. The question worth asking is not whether they suit each other but how much and when — salt drawn in early behaves differently from salt added at the end, and a blend already carrying it needs none added separately.

If you have no cinnamon (ceylon)

What to use instead, and — more usefully — where each replacement stops working.

Cassia

Good match

Use: 0.5–0.75× by volume — Use less cassia than the Ceylon cinnamon called for. Cassia is appreciably stronger and more astringent.

The dish becomes bolder, sweeter-hotter and slightly more astringent, and loses the citrus-floral lift that distinguishes Ceylon cinnamon. In most sweet baking this is not a loss — cassia is what most people expect cinnamon to taste like.

How the replacement compares on each sensory axis
FlavourAromaColourHeat
closecloseclosen/a

Works for

  • Sweet baking of every kind
  • Mulled drinks
  • Braises and savoury slow cooking
  • Anywhere the recipe simply says "cinnamon"

Does not work for

  • Delicate custards, milk puddings and poached fruit, where cassia bullies everything else
  • Mexican dishes specifying canela, where the delicacy is deliberate
  • Diets where habitual heavy cinnamon consumption makes coumarin intake a consideration

Cuisine: A Mexican or Sri Lankan dish made with cassia is a different dish. Elsewhere, the swap is usually invisible.

Allspice

Acceptable

Use: ~0.5× by volume — About half, because allspice is broader and brings clove and nutmeg character with it.

Keeps a dish warm-spiced and stops it tasting of cinnamon, which is either the point or the problem. Allspice also carries a peppery bite that cinnamon has none of — the reason it was once called pimento — and in a delicate bake that shows.

How the replacement compares on each sensory axis
FlavourAromaColourHeat
partialpartialclosesimilar

Works for

  • Fruit puddings, mulled drinks and braises
  • Caribbean and Levantine cooking, where allspice belongs anyway

Does not work for

  • Cinnamon buns and anything named for the spice.
  • Delicate baking, where the peppery note is exposed.

The nearer swap — cassia for Ceylon cinnamon — is recorded separately and is much closer, since they are related species sold under one name.

All 3 substitutes for cinnamon (ceylon)

Commonly confused with cinnamon (ceylon)

Direct comparisons, each with the difference that actually changes what you cook.

Preparation and use

Infuse whole quills in liquid and remove them, or break and grind them for baking. Ceylon quills are soft enough to break by hand and grind in a domestic spice grinder.

Culinary conventionReflects the brittle, layered structure of Ceylon quills, which behaves quite differently from hard cassia bark.
Culinary uses:

Ceylon cinnamon suits applications where the spice should be present but not loud: milk puddings, custards, poached fruit, delicate pastries, and savoury use in Sri Lankan, Mexican, Middle Eastern and North African cooking. In a dish designed around an assertive cinnamon hit — a classic cinnamon roll — it will read as underpowered, and cassia is the better choice.

What each treatment does:
  • grinding — Ceylon quills grind easily because they are thin and brittle. Ground bark loses its citrus and floral top notes quickly, leaving the plainer sweet base.
  • boiling — Whole quills infused in liquid give a clean, gradual extraction and can be removed. Prolonged boiling drives off the more volatile floral notes first.
  • baking — Cinnamaldehyde is reasonably heat-stable, so cinnamon survives baking better than many spices — but the delicate top notes that distinguish Ceylon from cassia are exactly the ones lost first.

Convert cinnamon (ceylon) between spoons and grams (a level teaspoon of ground cinnamon (ceylon) is about 2.6 ± 0.39 g)

Appears in: Advieh, Baharat, Garam masala, Hawaij, Jerk seasoning, Mitmita, Ras el hanout, Shawarma spice

Storage and freshness

Storage guidance by form
FormGood forConditionsFridge
Stick / quill12–36 months (typically 24 months)Cool, dark, dry, tightly closed.No
Ground6–18 months (typically 12 months)Cool, dark, dry, tightly closed.No
How to test it:

Snap a quill and smell the fresh break, or rub ground cinnamon in a warm palm. Old Ceylon cinnamon smells generically sweet; fresh Ceylon cinnamon smells sweet *and* faintly citrus-floral. If the second layer is missing, you have lost what you paid extra for.

Culinary conventionA test targeted at the specific compounds that distinguish this spice and degrade first.
Signs it has gone:
  • Faint aroma at a fresh break
  • Loss of the citrus-floral character, leaving flat sweetness
  • Greyed colour in ground spice
  • Caking
Culinary conventionDirectly observable indicators tied to the known degradation mechanisms.
Why it fades:
  • Volatilisation of cinnamaldehyde and the lighter floral terpenes
  • Oxidation on air exposure
  • Light-driven breakdown
  • Moisture uptake and caking

Quality is not the same as safety

Dry cinnamon that is past its best-before date is stale, not unsafe. Discard it for quality reasons, or for safety only if it is damp, hard-caked or mouldy.

Buying and quality

Whole or ground:

Buy quills if you want to know what you are getting. The layered structure of a Ceylon quill is visible and hard to fake, whereas ground "cinnamon" is routinely cassia and you cannot tell by looking. Ceylon quills are also brittle enough to grind at home, which is not true of cassia bark.

Editorial judgementRests on two evidenced points in this profile: the structural difference between Ceylon and cassia quills, and the fact that species substitution is widespread and legal in ground product.
What to look for:
  • Quills built from multiple thin layers, papery and easily crushed by hand — the structural signature of Ceylon cinnamon.
  • Pale tan colour rather than the deep red-brown of cassia.
  • A sweet aroma with a discernible citrus-floral lift, not just generic sweetness.
  • A label naming Cinnamomum verum or Ceylon specifically; "cinnamon" alone tells you nothing.
Culinary conventionThese correspond to genuine structural and compositional differences between the species, and are checkable in the shop.Sources: Handbook of Herbs and Spices
Grades:

Sri Lankan grades — Alba, Continental, Mexican, Hamburg, with numbered subdivisions — describe quill diameter and freedom from defects. They correlate loosely with quality but are not a direct measure of aroma.

Reasonable evidenceSources: Handbook of Herbs and Spices

Botany

Scientific name:
Cinnamomum verum J.Presl
Established factSources: Plants of the World Online

Also encountered under the synonym Cinnamomum zeylanicum Blume.

Family:

Lauraceae

Part used:
bark
Established factSources: Plants of the World Online

Specifically the inner bark, or phloem, separated from the outer bark and dried.

The plant:

An evergreen tree of the laurel family, native to Sri Lanka and southern India, grown commercially as a coppiced shrub so that it produces the slender young shoots from which bark is harvested.

Commonly confused with

  • Cassia

    The single most consequential confusion in the spice cupboard. In the United States and much of Europe, product labelled simply "cinnamon" is usually cassia. They are different species with different flavour, different bark structure and — importantly — very different coumarin content. SpiceHQ keeps them as separate entities for that reason.

Where it comes from and how it is made

Origin:

Sri Lanka, where it grows natively and where commercial production is concentrated.

Grown in:
  • Sri Lanka — origin. The dominant producer of true cinnamon, and the origin of the grading vocabulary used in the trade.
  • India (Kerala and Tamil Nadu) — notable producer
  • Seychelles — notable producer
  • Madagascar — notable producer
Harvest:

Shoots are cut, the outer bark scraped away, and the inner bark peeled off in strips. This is skilled hand work, and the quality of the peeling largely determines the grade of the finished quill.

Reasonable evidenceSources: Handbook of Herbs and Spices
Processing:
  1. Cutting shoots — Coppiced shoots of suitable diameter are cut, usually after rain when bark separates more readily.
  2. Scraping — The rough outer bark is scraped away to expose the inner bark.Why: Only the inner bark carries the desired aroma; outer bark is bitter and woody.
  3. Peeling — The inner bark is separated from the wood in long strips by hand.Why: The defining skilled step of Ceylon cinnamon production.
  4. Rolling and filling — Strips are telescoped inside one another and filled with smaller pieces to form a compound quill.Why: Produces the characteristic multi-layered Ceylon quill, structurally quite unlike a single thick cassia scroll.
  5. Drying — Quills are dried, contracting and firming as they lose moisture, then cut to length and graded.
Reasonable evidenceSources: Handbook of Herbs and Spices
Grading:

Sri Lankan cinnamon is graded on quill diameter, appearance and freedom from defects, using a trade vocabulary of Alba, Continental, Mexican and Hamburg classes with numbered subdivisions. Finer grades command higher prices but the grading describes quill quality rather than aroma strength directly.

Authenticity and adulteration:

The dominant authenticity issue is substitution rather than contamination: cassia sold or labelled as cinnamon. In many markets this is legal, because the regulatory definition of "cinnamon" is broad, which means the consumer problem is one of disclosure rather than fraud. Ground product is where the substitution is effectively undetectable by eye.

Cultivation:

Trees are coppiced so they throw up multiple slender shoots. Harvestable shoots are cut every one to two years once they reach a suitable diameter.

Reasonable evidenceSources: Handbook of Herbs and Spices
Climate:

Wet tropical lowlands with high rainfall and consistently warm temperatures.

Reasonable evidenceSources: Handbook of Herbs and Spices

History and trade

Cinnamon was one of the long-distance luxury spices of antiquity, reaching the Mediterranean while its true origin remained obscure to European buyers — a secrecy that classical sources filled with invented geography. Sri Lanka's cinnamon became a direct object of European colonial competition, held successively by the Portuguese, the Dutch and the British, with the Dutch in particular operating it as a controlled monopoly.

Timeline:
  1. Antiquity · Mediterranean and Near East

    Cinnamon and cassia are traded into the Mediterranean world; classical authors record fantastical accounts of their origin, including Herodotus' account of birds gathering cinnamon sticks.

    The confusion is itself historically significant: it shows how effectively intermediary traders concealed their sources.

  2. 16th century · Sri Lanka

    Portugal establishes control over Sri Lankan cinnamon.

  3. 17th century · Sri Lanka

    The Dutch East India Company displaces Portugal and operates cinnamon as a tightly controlled monopoly.

    Among the clearest cases of a spice monopoly enforced through control of a single island's production.

  4. 19th century · Sri Lanka and beyond

    British control follows, and monopoly conditions gradually break down as cultivation spreads.

Reasonable evidenceSources: Dangerous Tastes: The Story of Spices
Trade:

Cinnamon is a textbook example of a spice whose value derived from controlled scarcity rather than from difficulty of use. Its concentration on a single island made monopoly feasible in a way that was never possible for cumin or coriander.

Claims we do not accept at face value

  • “Ancient Mediterranean cinnamon was the same spice as modern Ceylon cinnamon.”

    contested

    Classical sources distinguish "cinnamon" from "cassia", but it is not securely established which botanical species those terms referred to, or whether the material reaching the Mediterranean was Cinnamomum verum at all. Scholars differ, and confident identifications in popular writing outrun the evidence.

Culture

Recorded by tradition rather than merged into one narrative — these are genuinely different practices.

Sri Lanka

Cinnamon is a savoury spice as much as a sweet one, used in curries and with meat and fish alongside other whole spices, rather than being reserved for baking.

Traditional practiceA well-documented regional usage that contradicts the common Western assumption that cinnamon is inherently a dessert spice.

Mexico

Ceylon cinnamon — canela — is the standard cinnamon, unlike in most of the rest of North America. It is used in chocolate preparations, in moles and in sweet drinks such as café de olla and horchata.

Traditional practiceA consistent and distinctive regional preference with historical roots in Iberian trade links to Sri Lanka.
  • Canela in Mexican chocolate and mole
  • Café de olla

Middle East and North Africa

Cinnamon appears routinely in savoury cooking — with lamb, in rice dishes and in blends such as baharat and ras el hanout — where a Western cook would not expect it.

Traditional practiceConsistently attested across the regional culinary literature.
Traditional medicinal context:

Cinnamon has extensive use in Ayurvedic and traditional Chinese medicine, where it is generally classed as a warming agent. This records the traditions, not a claim of clinical efficacy.

Reasonable evidenceSources: Dangerous Tastes: The Story of Spices

What it is called

  • Sinhala: කුරුඳු (kurundu)
  • Hindi: दालचीनी (dalchini)
  • Spanish: canela
  • Arabic: قرفة (qirfa)

Health evidence

What the clinical literature actually shows, with the evidence level and the exposure it was studied at stated before the finding. SpiceHQ reports evidence; it does not give health advice and records no doses.

Cinnamon is searched for its effect on blood sugar more than for anything else, and the trial evidence has been running for two decades without settling. A 2012 Cochrane review found insufficient evidence to support cinnamon for type 1 or type 2 diabetes; later reviews of lipid outcomes have been more favourable and remain inconsistent. Note that most of this research uses cassia rather than the true cinnamon this profile describes, which matters both for the effect and for the coumarin question.

Reasonable evidenceSources: Cinnamon: Usefulness and Safety
  • Preliminary evidenceBlood lipids

    Does cinnamon lower cholesterol?

    Human trials exist and are too few, too small or too inconsistent to conclude from.

    A 2020 systematic review and meta-analysis of sixteen studies reported that cinnamon supplementation in people with type 2 diabetes may decrease triglycerides, total cholesterol, LDL cholesterol and blood pressure relative to placebo. That is a positive signal from a specific population using supplements, and it has not been replicated across the field the way an established finding would be.

    What was studied:
    Medicinal preparation, Concentrated extract
    Relevance to cooking:
    Does not apply to eating the spice

    The population studied has type 2 diabetes and the exposure is a supplement. Neither transfers to a general reader using cinnamon as a spice.

    Sources: Cinnamon: Usefulness and Safety
  • Insufficient evidenceBlood glucose

    Does cinnamon lower blood sugar?

    It has been studied in people and the results do not agree.

    It is genuinely unresolved. A Cochrane systematic review of randomised trials found insufficient evidence to support cinnamon for type 1 or type 2 diabetes, and clinical trial data since have continued to conflict rather than converge. The honest summary is that this has been tested repeatedly in people and the results do not agree — which is different from untested, and different from disproved.

    What was studied:
    Medicinal preparation, Concentrated extract
    Relevance to cooking:
    Does not apply to eating the spice

    Trials use cinnamon in capsules at quantities well above culinary use, and generally use cassia rather than Ceylon cinnamon. Cinnamon on porridge has not been studied and there is no basis for assuming it does what a capsule was tested for.

    The literature is genuinely divided and both positions are held by serious reviews. SpiceHQ records the division rather than picking the side that makes a better headline.

    Sources: Cinnamon: Usefulness and Safety

Claims SpiceHQ does not make

Recorded rather than omitted. A page that says nothing about the question you arrived with has not spared you an answer; it has sent you to find a worse one.

  • Cinnamon is a treatment for diabetes.

    It is not, and presenting it as one is the harm this whole section exists to avoid. Cochrane found the evidence insufficient, and a person substituting cinnamon for prescribed treatment on the strength of an internet article is the specific outcome that makes careless health writing dangerous.

  • Cinnamon burns fat or aids weight loss.

    No clinical evidence supports it.

Safety

Safety statements on SpiceHQ must cite evidence — they cannot be published on editorial judgement.

Concentrated cinnamon oil and cats

Applies to: Distilled cinnamon essential oil — in diffusers, cleaning products, topical preparations and "natural" pest treatments — rather than the dried spice used in cooking.

Concentrated cinnamon oil is recorded among the essential oils implicated in toxicosis in companion animals, with cats disproportionately affected because they clear phenolic compounds poorly. Exposure can be oral, dermal or through grooming after contact with a treated surface. The concern is the distilled oil in diffusers, cleaners and topical products, not the bark or the ground spice in a kitchen cupboard.

Coumarin — substantially lower than in cassia

Applies to: Anyone consuming cinnamon in large amounts regularly

Coumarin occurs at much lower levels in Ceylon cinnamon than in cassia. The European Food Safety Authority has established a tolerable daily intake for coumarin of 0.1 mg per kg of body weight; regular heavy consumption of cassia can approach or exceed it, whereas Ceylon cinnamon is not a comparable dietary source. Where someone consumes cinnamon daily in quantity, the species genuinely matters.

Allergens:

    Not among the substances that must be declared as allergens under EU Regulation 1169/2011 Annex II or under the United States major food allergen rules. That is a statement about labelling law and not about whether allergy occurs: allergic reactions to spices are documented in the clinical literature and are simply not a labelling category. Where a ground spice presents an allergen risk it is usually through adulteration or shared processing equipment rather than through the plant itself.

    What we do not know

    Published openly. A gap we have named is more useful than a gap we have filled with plausible prose.

    94% of tracked fields answered3 recorded as unknown or not applicable15 sources citedEditorial confidence: high

    Fields we have not established for cinnamon (ceylon):

    • Propagation
    • Archaeological evidence
    • Ceremonial use

    How we grade evidence · The source library

    Questions this page answers

    • is cinnamon used in savoury food
    • cinnamon in savoury dishes
    • can you use cinnamon in meat dishes