Cinnamon is a popular spice that has been studied for its potential effects on blood sugar control and insulin sensitivity. Some research suggests that cinnamon may modestly improve fasting blood glucose in certain people, particularly those with type 2 diabetes. However, results across studies are mixed, and cinnamon should not be considered a treatment for diabetes.
How Cinnamon May Affect Blood Sugar
Cinnamon contains plant compounds that may influence glucose metabolism and the way the body responds to insulin. Some studies have reported improvements in insulin sensitivity or blood sugar levels, but there is no established daily dose guaranteed to lower blood sugar.
Small culinary amounts, such as adding cinnamon to coffee, tea, yogurt, oatmeal or fruit, can be an easy way to include the spice in a regular diet.
Ceylon vs. Cassia Cinnamon
Ceylon cinnamon, sometimes called “true cinnamon,” contains relatively low levels of coumarin, a naturally occurring compound that can be harmful to the liver when consumed in excessive amounts.
Cassia cinnamon, the variety commonly sold in supermarkets, generally contains considerably more coumarin. Regular consumption of large quantities may therefore pose a greater risk, particularly for people with liver problems.
Important Precautions
People taking insulin or blood-glucose-lowering medications should be cautious about using cinnamon supplements or large amounts of cinnamon, as combining products intended to lower glucose could potentially contribute to excessively low blood sugar.
Pregnant women and people with liver disease should also consult a healthcare professional before using cinnamon in concentrated or supplemental amounts.
Most importantly, cinnamon should not replace diabetes medication, medical monitoring, diet or other treatment prescribed by a healthcare professional. It is best viewed as a culinary spice that may have additional metabolic benefits rather than as a proven remedy for high blood sugar.
