Cardiovascular diseases like heart attacks and strokes are the world’s biggest killers.

High blood pressure, or hypertension, is one of the most important drivers of these diseases.

Human studies have found garlic supplements to have a significant impact on reducing blood pressure in people with high blood pressure..

In one study, 600–1,500 mg of aged garlic extract was just as effective as the drug Atenolol at reducing blood pressure over a 24-week period.

Supplement doses must be fairly high to have the desired effects. The amount needed is equivalent to about four cloves of garlic per day.

SUMMARYHigh doses of garlic appear to improve blood pressure for those with known high blood pressure (hypertension). In some instances, supplements may be as effective as regular medications.