It is not clear to date whether cinnamon is suitable for diabetics, and the American Diabetes Association does not approve its use in diabetes treatments. However, some studies show that cinnamon can lower insulin resistance, helping diabetics better manage their blood sugar levels, according to WebMD.
Studies published in Diabetes Care and Annuals of Family Medicine show that cinnamon has many benefits for Type 2 diabetes patients. However, it is hard to prove its effectiveness for everyone who is diabetic, since these studies involved small samples, reports Healthline.
Although some diabetics use cinnamon and never experience any side effects, those with liver problems should limit its consumption, since large amounts of cinnamon may worsen their liver condition, notes WebMD.