La Cinnamon has been in our kitchens and home medicine cabinets for thousands of years.But in recent years it has gone from a simple aromatic spice to a supposed "superfood" capable of doing almost everything: lowering blood sugar, helping with weight loss, protecting the heart, improving memory… and much more. Amidst all the exaggerated headlines and viral remedies, it's normal to have doubts about what has actually been proven and what hasn't.
In this article you will find A complete guide to the benefits of cinnamon and its precautionsBased on available evidence and points of expert agreement, this guide will show you the different types of cinnamon, their purported properties, which claims are supported by rigorous studies, the risks associated with high consumption (especially in supplement form), and how to safely use them daily.
What is cinnamon and where does it come from?
Cinnamon is the dry inner bark of several trees of the genus Cinnamomum, belonging to the laurel family, the same as the bay laurel. The outer bark is removed, the inner bark is peeled, it is left to ferment for a few hours and, when it dries, it is rolled up forming the typical twigs that we all recognize.
In young trees, the leaves are usually reddish and bright at first and they turn green as they ripen. The part usable for culinary and medicinal purposes is mainly the inner bark, which can be sold whole or ground, and can also be processed into concentrated extracts, essential oils or capsules.
Historically, cinnamon was for centuries a highly prized luxury productIn China it was valued almost as much as gold; in Ancient Egypt it was used in religious rites and embalming; and in the Arab world it served to flavor meats and as a possible aphrodisiac. In medieval Europe it was incorporated into both cooking and cosmetics, and into certain "medicinal" balms.
Today it is cultivated in Sri Lanka, India, Indonesia, Vietnam, China, Brazil, Madagascar, Zanzibar and other tropical countries, and has gone from being a luxury to a very affordable spice, present in practically any supermarket.
Types of cinnamon and important differences
Cinnamon is often talked about as if there were only one kind, but in reality There are several species with distinct profiles of flavor, aroma and, above all, active compoundsThis difference is key when we talk about safety and consumption limits.
Ceylon cinnamon or “true cinnamon” (Cinnamomum verum)
It comes mainly from Sri Lanka and southern IndiaIts rind is thin, light brown, with a more delicate texture and a mild, slightly sweet flavor. It is considered to have the highest gastronomic and nutritional quality.
One of its strong points is that It contains hardly any coumarinCitric acid, a natural aromatic compound that can be toxic to the liver in high doses, is found in Ceylon cinnamon. Ceylon cinnamon contains only trace amounts (around 0,004%-0,02%), making it the safest option for frequent use.
Cassia or Chinese cinnamon (Cinnamomum cassia)
It is the variety more common and cheaper in supermarketsIts rind is thicker, dark reddish in color, with a rough texture and a much more intense and spicy aroma than that of Ceylon.
Cassia is characterized by having a significantly higher coumarin contentConcentrations can range from 1-10% depending on the batch and origin. This difference means that, while safe in moderate cooking quantities, high consumption or intake in supplement form can easily exceed safe limits.
Saigon or Vietnamese cinnamon (Cinnamomum loureiroi)
It is a variety of the Cassia family, very aromatic, somewhat spicy, and expensiveIt is usually found in specialty stores or in food industry products due to its very powerful aroma.
Its coumarin content is high (around 4-8%) It also has a high concentration of cinnamaldehyde, the main component of essential oil. Precisely for this reason, It is not recommended to take it in large quantities or as a daily supplement.It is mostly reserved for flavoring food in small doses.
Indonesian cinnamon or Korintje (Cinnamomum burmannii)
It is characterized by a a redder color and a more intense and somewhat spicier flavorIt is also from the Cassia family and its coumarin content is between that of Chinese Cassia and Saigon Cassia (approximately 2-6%).
Although it is used in both industrial products and cooking, Its coumarin profile remains superior to that of Ceylonwhich also requires some caution if consumed daily or in concentrated form.
In practice, for everyday use in the kitchen, the general recommendation is prioritize Ceylon cinnamon whenever possibleand reserve Cassia (China, Saigon, Korintje) for occasional consumption or low doses.
Nutritional composition and active compounds
Although consumed in small quantities, cinnamon provides interesting micronutrients and a good load of phytochemicalsIn 100g (a much larger amount than is used daily) you will find minerals such as calcium, potassium, iron, phosphorus, magnesium and sodium, as well as vitamins such as vitamin A, folic acid and vitamin C.
Beyond the vitamins and minerals, the most relevant thing is their phenolic compounds, aldehydes and essential oils. They stand out among them:
- Cinnamaldehyde: The main contributor to the characteristic aroma and flavor, with antimicrobial and anti-inflammatory properties and a potential effect on glucose metabolism.
- Eugenol and other phenols: with antioxidant action and possible involvement in cardiovascular protection and against oxidative stress.
- Coumarin: present in very low quantities in Ceylon cinnamon and at much higher levels in Cassia varieties; at high doses it is hepatotoxic.
The combination of these compounds gives cinnamon its characteristic flavor. antioxidant, antimicrobial, antifungal, anti-inflammatory and potentially cardioprotective and metabolic activityalthough the strength of the evidence varies greatly from one application to another.
Benefits of cinnamon: what science says
Cinnamon has been considered a multi-purpose remedy for centuries in traditional medicines for respiratory, digestive and gynecological problemsToday, in vitro studies, animal studies, and some human trials are beginning to shed more light, although there are still points with contradictory results.
1. Possible aid in glucose and insulin control
Several studies indicate that cinnamon It could improve insulin sensitivity and facilitate the entry of glucose into cellshelping to regulate blood sugar levels, especially in people with prediabetes or type 2 diabetes.
The proposed mechanisms include interfere with digestive enzymes that break down carbohydrates (delaying their absorption), and modulate proteins involved in glucose transport. Their antioxidant and anti-inflammatory effect could also promote proper pancreatic function.
Nevertheless, recent reviews emphasize that, although there are studies that show moderate improvements in blood glucose and markers of insulin resistanceOthers find no significant effects. In other words, the evidence is promising but not yet conclusive.
In any case, even in the most optimistic studies, cinnamon is considered a dietary supplement, not a substitute for medication or lifestyle changesPeople with diabetes should never change their treatment without medical supervision.
2. Effect on weight and body composition
It has been suggested that cinnamon might increase thermogenesis (energy expenditure to produce heat), improve the use of fat as fuel and reduce the accumulation of adipose tissue, partly due to its influence on insulin.
This spice also provides Dietary fiberwhich helps to increase satiety and control appetite, especially when used to lightly sweeten preparations instead of added sugar.
However, human studies on weight loss with cinnamon supplements are inconclusive, with small samples and very heterogeneous dosesThere is no solid data to suggest that taking cinnamon capsules alone will cause weight loss.
What might be useful is incorporate it into a healthy diet as a partial substitute for sugar, in combination with regular exercise and other good habits.
3. Cardiovascular health: cholesterol, triglycerides and blood pressure
Several studies, particularly in people with metabolic disorders, indicate that cinnamon may reduce triglyceride levels and total and "bad" LDL cholesteroland even slightly improve the "good" HDL.
Furthermore, it has been observed that continued consumption could help to moderately lower blood pressure, thanks to its vasodilatory effect (it promotes the production of nitric oxide and partially blocks calcium channels), thus improving circulation.
However, the magnitudes of the effect are usually modest and dependent on the dose, duration and type of cinnamon usedOn its own, it is not a sufficient tool to treat hypercholesterolemia or hypertension.
A key point: the popular idea that “cinnamon lowers cholesterol” is overinterpreted and, to this day, cannot be maintained as a categorical statementespecially if studies in animals are extrapolated directly to humans.
4. Powerful antioxidant and anti-inflammatory action
Cinnamon is among the spices with greater antioxidant capacity, thanks to its content of polyphenols, flavonoids and other phenolic compounds.
These antioxidants help to neutralize free radicals and reduce oxidative stress, a process involved in cellular aging and in the development of numerous chronic diseases (type 2 diabetes, cardiovascular diseases, certain cancers or neurodegenerative disorders).
A anti-inflammatory action by reducing pro-inflammatory cytokines and modulating metabolic pathways involved in chronic low-grade inflammation, which could alleviate certain pains associated with inflammatory processes.
5. Possible neuroprotective and cognitive effects
Preliminary studies suggest that some components of cinnamon may to protect neurons from oxidative and inflammatory damage and improve the brain's use of glucose.
Potential effects have been described on memory, learning, and attentionas well as the ability of certain compounds to inhibit the accumulation of abnormal proteins (such as tau) related to Alzheimer's disease.
In animal models of Parkinson's disease, it has been observed that cinnamon can protect neurons and improve motor functionHowever, these results still need to be verified in robust clinical trials in humans.
6. Antimicrobial and antifungal activity
Cinnamaldehyde and other components of cinnamon essential oil have been shown activity against various bacteria and fungiIn the laboratory, cinnamon oil inhibits the growth of microorganisms involved in respiratory and gastrointestinal infections.
In the food industry, it has been used for to slow the growth of bacteria such as Listeria or Escherichia coli in certain products, extending their useful life.
Its antimicrobial action is also used in oral hygieneIt can help reduce oral bacteria, help prevent cavities and improve breath, although it does not replace good hygiene or dental treatments.
7. Effects on sexual function and mood
Some works describe her as a spice with a certain aphrodisiac effect, probably due to its vasodilatory capacity and its effects on blood circulation, which could be useful in certain sexual dysfunctions, especially in experimental models with men.
On the other hand, possible antidepressant effectsThese effects are related to a reduction in inflammatory processes in the brain and a possible increase in neurotransmitters such as serotonin. Evidence in humans is still in its early stages, but it opens up an interesting line of research.
8. Anticancer potential (still in a very experimental phase)
In test tube and animal studies, extracts of cinnamon and cinnamaldehyde have shown ability to slow the growth of tumor cells, induce their death and reduce the formation of new blood vessels in tumors.
This potential is being investigated in different types of cancer (such as ovarian cancer), but for now There is insufficient evidence to recommend cinnamon as a cancer treatment.These findings are considered starting points for future trials.
Risks, precautions and contraindications of cinnamon
In the quantities used for cooking, cinnamon is safe for most healthy peopleThe problem arises when supplements, concentrated extracts, or large quantities of varieties rich in coumarin are overused.
Coumarin and the daily safety limit
The European Food Safety Authority (EFSA) has established a Tolerable daily intake of coumarin is 0,1 mg per kilogram of body weightThis means that, for example, a 60 kg person should not exceed 6 mg of coumarin per day on a continuous basis.
Since Cassia cinnamon and other similar varieties may contain very high concentrations of coumarinIt is relatively easy to reach or exceed that limit if you take supplements, very strong infusions, or large amounts of cinnamon powder daily.
In contrast, Ceylon cinnamon has so little coumarin that it is It's difficult to reach worrying levels solely through its culinary use.That's why it's considered the most suitable option for those who consume it every day.
Possible toxic effects of excessive cinnamon
The main risk associated with coumarin is the hepatotoxicity (liver damage), especially in people with pre-existing liver disease or who take drugs that already put a strain on this organ.
Excessive and prolonged consumption of cinnamon supplements (especially Cassia) can also cause gastrointestinal problems, nausea, abdominal discomfort, headaches and skin reactions such as dermatitis or hives in sensitive individuals.
Due to its possible hypoglycemic effect, a high dose may lowering blood sugar too much in people who are already taking medication for diabetes, increasing the risk of hypoglycemia.
drug interactions
Prolonged use of cinnamon extracts or supplements in medium-to-high doses has been linked to Interactions with various types of drugs:
- Anticoagulants and antiplatelet drugs (increase the risk of bleeding).
- Pain relievers and certain anti-inflammatories.
- Antidepressants
- Chemotherapeutic agents.
- Antidiabetic medications.
If you take medication chronically, especially from these groups, it is essential Consult your doctor before adding cinnamon supplements. or significantly increase their consumption.
Pregnancy, breastfeeding, babies and children
In some cultures, cinnamon has been recommended postpartum for its possible anti-inflammatory and sedative properties, but There is no robust evidence to support its therapeutic use at this stageOn the contrary, some studies warn that certain plants traditionally used could affect fertility or induce abortions in high doses.
During pregnancy and breastfeeding, it is advised moderation with cinnamon and avoid concentrated supplements, limiting themselves to normal culinary use with a preference for Ceylon.
In babies and young children, especially if there is family history of allergies, asthma, or eczemaIt's advisable to introduce cinnamon cautiously and in small amounts, observing for any reactions. It's not recommended to overuse it or give supplements to children without professional supervision.
People with ulcers, liver disease, or risk of bleeding
Who suffer severe liver disease, digestive ulcers, or blood clotting disorders They should be especially cautious. In these cases, high consumption of Cassia cinnamon or supplements can aggravate the problems.
It is also recommended Stop using cinnamon supplements at least two weeks before scheduled surgery, due to its potential effect on coagulation and glucose control.
The controversial “cinnamon challenge”
A few years ago, a challenge went viral on social media that consisted of ingest a tablespoon of cinnamon powder in less than a minute without waterBeyond the shocking nature of the videos, this challenge led many people to the emergency room.
When trying to swallow such a large quantity of dry powder, some of the cinnamon ends in the respiratory tract, which can cause episodes of severe coughing, inflammation, asthma attacks, chemical pneumonitis and even permanent damage to lung tissue in the most serious cases.
Healthcare professionals agree: It is a dangerous and unnecessary challenge which should not be repeated or promoted.
Does cinnamon expire? Shelf life and storage
Dried cinnamon contains very little waterThis inhibits the growth of bacteria, fungi, and yeast. Furthermore, cinnamaldehyde has antibacterial properties that contribute to its preservation.
If it is saved in a Store in an airtight container, away from direct light and moisture.Whether in branch or ground, it can last for years without spoiling from a food safety point of view.
However, over time it loses aroma, flavor and intensityBecause its volatile oils degrade. It doesn't become toxic, but it does become less appealing in terms of flavor and aroma, so it's a good idea to replace it periodically if you want to enjoy its full potential.
How to use cinnamon daily: practical ideas and recommended doses
The parts used are mainly the bark, either in branches or groundAnd, in the realm of supplements, standardized extracts and essential oils are also available. Culinary use is the safest and most recommended way to incorporate it into the diet.
In sweet dishes and drinks
One simple way to use cinnamon is sprinkle about a teaspoon of coffee in preparations such as:
- Fresh fruit (apple, pear, banana, melon, sliced orange…).
- Natural yogurt or kefir.
- Oats, muesli or whole grain cereals.
- Shakes and smoothies.
- Coffee, cocoa or herbal teas.
In these contexts, cinnamon can help to reduce the amount of added sugar that you need to make the food enjoyable, providing a very characteristic aromatic sweetness.
In savory dishes and traditional recipes
In many cuisines around the world, cinnamon is also used in stews, curries, rice dishes and marinadesIt goes very well with:
- Stewed meats or lamb, beef or chicken stews.
- Legume dishes (lentils, chickpeas).
- Slightly sweet sauces with tomato, onion and nuts.
To make homemade seasoning you can Grind cinnamon together with star anise, pepper, and coarse salt and store it in a jar to sprinkle over meats, tofu, or roasted vegetables.
Tea and cinnamon water
A very popular option is to prepare a cinnamon tea or infusionSimply place 1 stick in a cup of boiling water, let it steep for 10 minutes and drink up to 3 cups a day, preferably before meals.
Can also be done cinnamon water Boil about 4 sprigs in 2 liters of water, let it cool, and store it in the refrigerator. It's a good alternative to sugary drinks for hydration with a light aromatic touch.
Cinnamon supplements: when and how
The supplements come in capsules or tablets with cinnamon extract, generally in doses of between 1 to 6 g per day and for periods of up to 6 weeks, followed by a 1-2 month break.
In this format, the following is important:
- Choosing preferably Ceylon cinnamon due to its lower coumarin content.
- Always take them under medical supervision or the supervision of a registered dietitian nutritionistespecially if you have an illness or are taking medication.
- Do not exceed the doses recommended by the manufacturer or healthcare professional.
In general, for most healthy people who are simply looking to improve their diet, There is no need to resort to supplementsIt is enough to integrate it into your regular diet.
How much cinnamon is reasonable to take per day
For a healthy adult, it is considered prudent not to exceed between 1/2 and 1 teaspoon of ground cinnamon per day (about 2-4 g), especially if it is Cassia cinnamon.
If you choose to use ceylon cinnamonThe safety margin compared to coumarin is greater, although it is still wise not to overuse it and to keep it as what it is: a spice, not a miracle supplement.
In any case, the key is in Variety, moderation, and contextA globally healthy diet, rich in fruits, vegetables, legumes, nuts and whole grains, provides far more benefits than any isolated spice.
Cinnamon is, ultimately, an aromatic spice with interesting propertiesIt offers antioxidant and antimicrobial activity, may modestly contribute to the control of glucose, lipids, and blood pressure, and shows neuroprotective and anti-inflammatory potential in preliminary studies, but it is not a cure for diabetes, obesity, or cardiovascular disease. Used in cooking, ideally in the form of Ceylon cinnamon and as part of a balanced diet, it can be a great ally; however, when used in viral challenges, as an uncontrolled supplement, or in excessive doses of Cassia, it becomes an avoidable risk, especially for the liver and in people taking medication or with pre-existing conditions.
