If left untreated, it may lead to diabetes, heart disease, and many other health problems ( 16).Ĭinnamon is well-known for its ability to lower blood sugar. Having chronic high blood sugar is a health problem. However, this seems to mostly affect people who use too much cinnamon oil or chewing gum, as these products contain more cinnamaldehyde. Summary Some people are allergic to a compound in cinnamon called cinnamaldehyde, which can cause mouth sores.
#CHROMIUM SIDE EFFECTS SKIN#
You can get tested for this type of allergy with a skin patch test ( 15).Īlso, 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. However, it’s important to note that cinnamaldehyde will only cause mouth sores if you’re allergic to it. While these symptoms aren’t necessarily serious, they can cause discomfort ( 14). In addition to mouth sores, other symptoms of a cinnamaldehyde allergy include: Small amounts of the spice don’t seem to cause this reaction, as saliva prevents chemicals from staying in contact with the mouth for too long. Some people have experienced mouth sores from eating products that contain cinnamon flavoring agents ( 12, 13, 14).Ĭinnamon contains cinnamaldehyde, a compound that may trigger an allergic reaction when consumed in large amounts. Studies have shown that eating too much coumarin may increase the risk of liver toxicity and damage. Summary Regular cinnamon contains high amounts of coumarin. However, this case involved supplements that provided a higher dose than you would get from diet alone. Unfortunately, several studies have found that eating too much coumarin may cause liver toxicity and damage ( 4, 5).įor example, a 73-year-old woman developed a sudden liver infection causing liver damage after taking cinnamon supplements for only 1 week ( 7). This means that just 1 teaspoon of Cassia cinnamon could put you over the daily limit ( 3). The tolerable daily intake of coumarin is approximately 0.05 mg/pound (0.1 mg/kg) of body weight, or 5 mg per day for a 130-pound (59-kg) person. The coumarin content of ground Cassia cinnamon may range from 7 to 18 milligrams per teaspoon (2.6 grams), while Ceylon cinnamon only contains trace amounts of coumarin ( 6). Cassia (or regular) cinnamon is a rich source of coumarin.
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