Sourced from an Asian plant known as konjac, glucomannan is a fiber-rich substance sometimes used to treat diabetes. Proponents claim that glucomannan can help keep blood sugar in check, as well as protect against high cholesterol (a problem common among diabetes patients).
To date, only a few studies have tested glucomannan's ability to fight diabetes. Some research suggests that glucomannan may help regulate blood sugar and reduce LDL ("bad") cholesterol in diabetes patients.
There's some evidence that other natural remedies (such as ginseng and cinnamon) may aid in diabetes management. In addition, research indicates that drinking black tea on a regular basis and maintaining optimal levels of vitamin D may be helpful to people with diabetes. Read the full article: Glucomannan for Diabetes.