Oh yea,
Magnesium and chromium picolinate supplements enhance the bodies ability to effect a healthy insulin response (reduces insulin resistance and improves insulin production). This can be used to help prevent Type 2 Diabetes.
DISCLAIMER:
If you are taking prescription meds for HBP, cholesterol, Diabetes, etc. DO NOT take this stuff in large doses without talking to your doctor first. Seriously. Niacin, for example, has a powerful blood pressure reduction effect and you must be careful taking it.