Garlic
Garlic has been found useful in patients whose blood pressure is mildly elevated. It is believed that allicin in garlic increases the production of nitric oxide and this helps to relax the muscles of the arteries, reducing both the diastolic as well as the systolic blood pressure. To get the entire benefits of garlic, it is recommended that you peel and lightly crush the fresh garlic and consume it raw. However, garlic also has the property of thinning blood and this means the clotting ability of blood is reduced; so it is best to use garlic supplements only after you consult your doctor.