Does Garlic Treat High Blood Pressure?

What is garlic’s effect on blood pressure?

Garlic may help reduce systolic and diastolic blood pressure levels by up to 11.2 mm Hg. In some instances, garlic supplements may work as effectively as standard blood-pressure-lowering medications, with much fewer side effects.

How does it work?

Garlic may help reduce blood pressure by preventing the production of angiotensin II, enhancing the availability of nitric oxide, or increasing the production of hydrogen sulfide. Its anti-inflammatory and antioxidant properties may further help.

Safety

Garlic is generally considered safe. Side effects appear minor or rare and may be most likely to occur upon consuming raw garlic rather than aged garlic extracts or garlic powder supplements.

Effective dosages and forms

Raw garlic, garlic powder, aged garlic extracts, or garlic oil all appear to help lower blood pressure. Effective dosages range from 12.3–2,400 mg per day for 2–24 weeks, depending on the form taken.

Other natural blood pressure remedies

Other natural blood-pressure-lowering remedies exist. That said, it’s always best to consult your doctor before adding any dietary supplement to your diet.