Ginseng may lower blood sugar too far in people taking prescription diabetes medications.
It is also used to lower the risk of stroke in certain people with heart disease.
Losing weight can also lower insulin resistance in people who have prediabetes.
There is some concern that it might lower blood sugar too much in people with diabetes.
Other chemicals might lower blood sugar in people with diabetes.
The powdered leaves of white mulberry seem to lower blood sugar in people who have type 2 diabetes.
Lowering hemoglobin A1c, a measure of average blood sugar level over three months, in people with type 2 diabetes.
Early research suggests that a particular banaba extract might lower blood sugar in people with type 2 diabetes.
It also seems to lower blood pressure in people with normal blood pressure.
They may lower the risk of heart attack in people with unstable angina or those who have recently had angioplasty.