Vitamin C lowers blood pressure and raises HDL in older people. NIaspan, a long-acting form of niacin, improves blood lipid profile. DHEA levels are increased in hypertensives. Coenzyme Q10 lowers blood pressure. Antioxidant vitamins may reduce the chances of hypertension during pregnancy.
Magnesium supplementation can lower blood pressure in people with hypertension.
Calcium supplementation during pregnancy does not prevent preeclampsia. The first proof that vitamin E protects against heart attacks.