Cinnamon can also cause allergies like skin irritation, and stomach issues in some people. In some people, consuming too much cinnamon can also lead to a burning sensation in the stomach. It is not just painful, but can even cause stomach ulcers, and cancer. All in all, it hampers the digestive processes , so be very careful!
Cinnamon contains cinnamaldehyde, and this is the main reason due why some people experience mouth ulcers. Some people also complain about burning and an itchy sensation on the tongue or in gums. CBS News Have you heard of the "cinnamon challenge"? A person takes one tablespoon of cinnamon and tries to swallow it within 60 seconds. While it seems relatively simple, videos all over the web show people attempting the stunt, coughing up clouds of reddish-brown dust for viewers' amusement.
It can cause an inflammatory reaction. This means that just 1 teaspoon of Cassia cinnamon could put you over the daily limit 3. Unfortunately, several studies have found that eating too much coumarin may cause liver toxicity and damage 4 , 5.
For example, a year-old woman developed a sudden liver infection causing liver damage after taking cinnamon supplements for only 1 week 7. However, this case involved supplements that provided a higher dose than you would get from diet alone. Animal studies have shown that eating too much coumarin, which is abundant in Cassia cinnamon, may increase the risk of certain cancers 3. For example, studies in rodents have found that eating too much coumarin can cause cancerous tumors to develop in the lungs, liver, and kidneys 8 , 9 , However, some scientists believe that coumarin causes DNA damage over time, increasing the risk of cancer Most research on the cancerous effects of coumarin has been performed on animals.
More human-based research is needed to see if the same link between cancer and coumarin applies to humans. Some people have experienced mouth sores from eating products that contain cinnamon flavoring agents 12 , 13 , Cinnamon contains cinnamaldehyde, a compound that may trigger an allergic reaction when consumed in large amounts.
You can get tested for this type of allergy with a skin patch test Also, mouth sores seem to mostly affect those who use too much cinnamon oil and cinnamon-flavored chewing gums, as these products can contain more cinnamaldehyde.
Having chronic high blood sugar is a health problem. If left untreated, it may lead to diabetes, heart disease, and many other health problems Cinnamon is well-known for its ability to lower blood sugar. Studies have found that the spice can mimic the effects of insulin , a hormone that helps remove sugar from the blood 17 , 18 , While eating a bit of cinnamon may help lower your blood sugar, eating too much may cause it to fall too low.
This is called hypoglycemia. It can lead to tiredness, dizziness, and possibly fainting People who are most at risk of experiencing low blood sugar are those taking medications for diabetes. This is because cinnamon may enhance the effects of these medications and cause your blood sugar to fall too low.
Don't count cinnamon out of your diet, however. When it's swallowed as part of a recipe, it's a beneficial spice to include in your healthy eating plan. In , cases of cinnamon misuse were reported to poison control centers in the U. The cinnamon challenge dare often causes the participant to cough out a cloud of cinnamon-colored dust.
As of , the stunt had landed at least 30 participants in the hospital with serious and potentially long-lasting damage, according to the American Academy of Pediatrics. At the very least, swallowing a large amount of dry cinnamon can cause gagging, coughing and a burning sensation in the mouth.
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