Consumption of cinnamon on a daily basis is shown to lower blood pressure in people with diabetes, and it may also help lower blood pressure in nondiabetic patients, explains Healthline. Do not use cinnamon as a supplement without discussing the potential risks with a health care professional.
While cinnamon is used for medicinal purposes around the world, many studies involving cinnamon are inconclusive or involve lab studies, according to WebMD. Some lab studies suggest cinnamon has antioxidant properties and may help reduce inflammation and fight bacteria, but these studies do not involve people. Inconclusive studies suggest cinnamon may or may not help lower cholesterol and treat yeast infections in HIV patients, as well as lower blood sugar in diabetic patients.
Some herbs in large quantities, including cinnamon, can have undesirable side effects, states Healthline and WebMD. Since cinnamon is not used as an established medical treatment, there is not a specific safe dose outlined for any medical purpose. Very high doses of cinnamon may be toxic, especially for people with liver problems. Treating health conditions in children or pregnant or breastfeeding women is not recommended. Varying dosage information exists, ranging from 1/2 to 1 teaspoon, or 2 to 4 grams, of cinnamon powder per day. Some studies use slightly higher amounts of up to 6 grams of cinnamon per day.