Cinnamon tea is a warming drink made from cinnamon sticks or ground cinnamon steeped in hot water. It is good for adding flavor without sugar, and some research suggests it may help with blood sugar control and provide antioxidants. But the evidence for many claimed benefits is mixed, and certain types of cinnamon carry risks if consumed in large amounts.
What Is Cinnamon Tea Good For?
Cinnamon tea is most often used for its potential to support healthy blood sugar levels. Some studies have found that compounds in cinnamon may help improve insulin sensitivity and lower fasting blood glucose. The tea also contains antioxidants called polyphenols, which can help protect cells from damage. However, these effects are modest, and cinnamon tea is not a replacement for medical treatment or lifestyle changes.
Does Cinnamon Tea Lower Blood Sugar?
Some research suggests that cinnamon may modestly lower fasting blood sugar and improve insulin sensitivity. A 2018 review of multiple studies found that cinnamon reduced fasting glucose by an average of about 4 mg/dL and improved HbA1c slightly. But the quality of the studies varied, and not all trials showed consistent results. Cinnamon tea is not a substitute for diabetes medication, diet, or exercise.
The active compound thought to help is cinnamaldehyde, which may mimic insulin and help cells take up glucose. Most studies used doses of 1 to 6 grams of cinnamon powder per day, not tea. A typical cup of cinnamon tea made from a stick contains far less, so the effect from tea alone is likely smaller. If you have diabetes, talk to your doctor before using cinnamon tea regularly.
How Does Cinnamon Tea Affect Inflammation?
Cinnamon contains antioxidants and anti-inflammatory compounds, particularly cinnamaldehyde and proanthocyanidins. Laboratory studies show these compounds can reduce markers of inflammation like tumor necrosis factor-alpha and interleukin-6. This is why some people use cinnamon tea for conditions involving chronic inflammation, such as arthritis or heart disease.
Human studies are limited. One small trial found that taking 500 mg of cinnamon extract daily for 12 weeks reduced C-reactive protein (a marker of inflammation) in people with type 2 diabetes. But these results have not been consistently replicated. Drinking cinnamon tea provides these compounds at lower concentrations than extracts or supplements. It may offer mild anti-inflammatory effects, but it cannot replace proven treatments.
Can Cinnamon Tea Help With Weight Loss?
No clinical evidence proves that cinnamon tea directly causes weight loss. Some studies suggest that cinnamon may modestly improve insulin sensitivity, which could help with blood sugar regulation and potentially reduce fat storage. But these effects are small, and no well-designed trial has shown that drinking cinnamon tea leads to significant weight loss.
Marketing claims that cinnamon tea “burns fat” or “boosts metabolism” are not supported by evidence. Any weight loss benefit would come from replacing sugary drinks with cinnamon tea, which has virtually no calories. If you drink it unsweetened, it can be part of a healthy diet, but it is not a weight loss tool.
What Are the Risks of Drinking Cinnamon Tea?
The main risk comes from coumarin, a natural compound found in Cassia cinnamon (the most common variety sold in grocery stores). Coumarin can cause liver damage in high doses. The European Food Safety Authority sets a tolerable daily intake of 0.1 mg of coumarin per kilogram of body weight. A single teaspoon of ground Cassia cinnamon contains about 5 to 12 mg of coumarin. That means a 150-pound (68 kg) person should not exceed about 7 mg per day — roughly one teaspoon of Cassia cinnamon.
Tea made from a cinnamon stick leaches less coumarin into the water than using ground cinnamon. One study found that a cup of tea made from a Cassia stick contains about 0.3 to 1 mg of coumarin. So occasional cups are likely safe for most people. However, drinking multiple cups daily from Cassia cinnamon, or taking cinnamon supplements, could exceed the safe limit. People with liver disease should be especially cautious.
Other risks include allergic reactions (rare) and possible interactions with blood-thinning medications like warfarin. Cinnamon contains a small amount of vitamin K, but the bigger concern is that large amounts could affect clotting. If you take blood thinners, consult your doctor before drinking cinnamon tea regularly.
Cassia vs. Ceylon: Which Cinnamon Is Safer for Tea?
There are two main types of cinnamon. Cassia cinnamon is cheaper and more common. It has a stronger flavor and contains higher levels of coumarin. Ceylon cinnamon, also called “true cinnamon,” is lighter in color and taste. It contains only trace amounts of coumarin, making it much safer for regular use.
Most studies on health benefits have used Cassia cinnamon because it is more widely available and contains higher levels of bioactive compounds. But the coumarin risk is real. If you drink cinnamon tea daily, Ceylon is the safer choice. Ceylon cinnamon can be labeled as “Cinnamomum verum” or “Cinnamomum zeylanicum.” It costs more but is widely available in health food stores and online.
To reduce coumarin exposure, you can also use a whole cinnamon stick instead of ground cinnamon. The stick releases less coumarin into the water. Always check the label: if it just says “cinnamon,” it is almost certainly Cassia. Look specifically for “Ceylon cinnamon.”
Can Cinnamon Tea Interact With Medications?
Yes. Cinnamon in large amounts can lower blood sugar, which may cause hypoglycemia if combined with diabetes medications like insulin or sulfonylureas. It may also slow blood clotting, increasing the risk of bleeding when taken with warfarin or antiplatelet drugs. Some research suggests cinnamon might affect how the liver processes certain drugs, though the clinical significance is unclear.
If you take any prescription medication, especially for diabetes, heart disease, or blood thinning, talk to your doctor before adding cinnamon tea to your daily routine. One or two cups occasionally are unlikely to cause problems, but regular use in higher amounts warrants caution.
How to Make Cinnamon Tea for Maximum Benefit
To make cinnamon tea, use one stick of Ceylon cinnamon per cup of boiling water. Let it steep for 10 to 15 minutes. You can also simmer a stick in water for 5 minutes for a stronger flavor. Avoid using ground cinnamon if you are concerned about coumarin, because it stays suspended in the water and you may ingest more.
Do not add sugar if you are using the tea for blood sugar control. A squeeze of lemon or a small amount of honey can be added for taste, but honey still raises blood sugar. Cinnamon tea has no caffeine, so it can be consumed any time of day.
Frequently Asked Questions
How much cinnamon tea is safe to drink per day?
One or two cups made from Ceylon cinnamon sticks are safe for most people. If using Cassia cinnamon, limit to one cup every few days to avoid exceeding the safe coumarin limit.
Can cinnamon tea help with colds and flu?
Cinnamon has antimicrobial properties in lab studies, but no human trials confirm it fights colds. Hot tea itself can soothe a sore throat.
Does cinnamon tea contain caffeine?
No, cinnamon tea is naturally caffeine-free. It is made from cinnamon bark, not tea leaves.
Is cinnamon tea safe during pregnancy?
Small amounts used as a spice in food are safe. But concentrated cinnamon tea or supplements should be avoided due to coumarin risk and lack of safety data.
