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Is Cinnamon Good for Diabetics?

Diabetes is a chronic health condition.

According to the World Health Organization, the number of people diagnosed with diabetes has more than doubled in the past 40 years.1

After we eat, food is broken down into sugar and taken up through the blood.

Insulin is needed to take up glucose (sugar) from the blood.2 Without proper functioning insulin, too much sugar stays in the blood and causes serious health complications.

Managing diabetes is important so that it doesn’t lead to more complicated illnesses, such as heart disease and nerve damage.


Cinnamon is a popular spice used world-wide.

Cinnamon comes from the bark of the Cinnamomum tree.3 It is used to flavor dishes and preserve food, but throughout history, it has served as a medicine as well. Cinnamon has provided aid in treating different ailments including respiratory and digestive issues.3

The health effects of cinnamon come from its various parts, either the bark, leaves, or root.4 There are currently two different types of cinnamon available for consumers: Ceylon or cassia.

Cassia cinnamon

Cassia cinnamon is the cinnamon most commonly seen in food products.4

Cassia must be used with caution because some research has found it to contain coumarin (a substance found in plants).4 Too much coumarin can become toxic to the liver.5

Ceylon cinnamon

Ceylon cinnamon is known as “true cinnamon” and it is more expensive to obtain.4

It contains lower amounts of coumarin and is, therefore, safer for consumption.5

So, how is cinnamon good for diabetics?

Health benefits of cinnamon

Lowers blood sugar

The active ingredient in cinnamon, MHCP, can lower blood glucose levels by mimicking what insulin does.6

Studies have found that it can target the same parts of the cell as insulin.

By increasing the insulin response, cinnamon can decrease fasting blood sugar levels and improve diabetes symptoms.6

Regulates cholesterol

The cholesterol-regulating properties of cinnamon make it a great spice to consume for people with type 1 or 2 diabetes.

In type 2 diabetics, one study discovered that having 1, 3, or 6 grams of cinnamon was able to decrease “bad” and overall cholesterol levels.6

By regulating cholesterol, which is usually high in diabetics, cinnamon consumption can prevent plaque buildup in blood vessels of the heart and prevent heart complications.6

Lowers blood pressure

Cinnamon can help lower blood pressure, strengthen heart health and improve some of the cardiovascular complications seen in diabetic patients.4


Cinnamon is rich in antioxidant compounds.4 Antioxidants are important because they help fight against damage caused by oxidative stress. Oxidative stress is caused by free radicals (unstable molecules) that can damage cells.

Oxidative stress plays a big role in the development of diabetes.

Research has shown that regularly consuming cinnamon as part of the diet can decrease oxidative stress in people with prediabetes.4

A large population study found that taking 500mg of a cinnamon extract supplement for 12 weeks, was able to decrease harmful free radicals by about 14%.4


Cinnamon has powerful anti-microbial benefits.

Many experiments have shown that it can fight different bacteria, including tuberculosis, some fungus, and the human rotovirus.4

Cinnamon’s anti-microbial properties can also protect against parasites.

A study in children found that a ten-day use of cinnamon bark was able to protect two infants from Salmonella.4

Since people with diabetes are susceptible to bacterial infections, cinnamon may help in fighting illnesses.

Cinnamon supplements

There is still no general agreement on the exact amount of cinnamon that should be added to the diet.

Since cinnamon lowers the amount of sugar in the blood, it is important to be careful when mixing it with other medications. Having too low blood glucose levels (hypoglycemia) can be dangerous and lead to problems, such as heart complications.4

Cinnamon has incredible health benefits. Including this spice in the diet may be beneficial in diabetes care for people with prediabetes or diabetes. Talk to a healthcare professional to find out if cinnamon is right for you.


  1. New WHO Global Compact to speed up action to tackle diabetes. (2021, April 15). World Health Organization.
  • Ranasinghe, P. and Galappaththy, P., 2016. Health benefits of Ceylon cinnamon (Cinnamomum zeylanicum): a summary of the current evidence.  Ceylon Medical Journal, 61(1), pp.1–5. DOI:
  • Roussel, A. M., Hininger, I., Benaraba, R., Ziegenfuss, T. N., & Anderson, R. A. (2009). Antioxidant effects of a cinnamon extract in people with impaired fasting glucose that are overweight or obese. Journal of the American College of Nutrition28(1), 16–21.
  • Coumarin in flavourings and other food ingredients with flavouring properties ‐ Scientific Opinion of the Panel on Food Additives, Flavourings, Processing Aids and Materials in Contact with Food (AFC). (2008). EFSA Journal, 6(10), 1–15.
  • Khan, A., Safdar, M., Ali Khan, M. M., Khattak, K. N., & Anderson, R. A. (2003). Cinnamon Improves Glucose and Lipids of People With Type 2 Diabetes. Diabetes Care, 26(12), 3215–3218.
Melody Sayrany MSc
Melody Sayrany MSc
Melody Sayrany is a seasoned science writer with a host of experiences in cancer, neuroscience, aging, and metabolism research. She completed her BSc at The University of California, San Diego, and her MSc in biology, focusing on metabolic diseases during aging, at the University of British Columbia. Melody is passionate about science communication, and she aims to bridge the gap between complex scientific concepts and the broader community through compelling storytelling.


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