High blood pressure, also known as hypertension, is a condition that affects about one in three adults in Western countries. It often comes with no symptoms yet significantly increases a person’s risk of heart disease and stroke (1Trusted Source).
Blood-pressure-lowering drugs often cause a range of unpleasant side effects, which helps explain the growing interest in potentially effective natural remedies, such as garlic.
This article, reprinted from Healthline, discusses whether garlic is a safe and effective way to naturally lower your blood pressure, and if so, which forms are most effective.
On a personal note I have been a user of Garlic as a supplement for years. My brother did extensive research on it and found Alli-C. He had Esophogeal Cancer and while going through treatment he wanted something to help his immune system. He is six years cancer free and to this day we rarely get colds or the flu. Read more about Alli-C here.
Be Well,
Anisa
What is garlic’s effect on blood pressure?
Garlic (Allium sativum) is a vegetable that has been used as a natural blood-pressure-lowering remedy since ancient times (2Trusted Source).
Recent research suggests this may be for good reason, as garlic appears to be a very effective remedy against high blood pressure. In fact, some studies report it to be as effective as standard blood-pressure-lowering medications – with much fewer side effects (3Trusted Source).
One review of randomized controlled trials (RCT) – the gold standard in research – reported that garlic supplements may reduce systolic and diastolic blood pressure (the top and bottom numbers of a reading) by 6.7 and 4.8 mmHg, respectively, with no serious side effects.
The studies included in the review provided participants with 188–2,400 mg of garlic powder supplements or aged garlic extracts per day and lasted 8–12 weeks (4Trusted Source).
Several other recent reviews support these results, with many reporting blood pressure reductions ranging from 2.5–11.2 mm Hg following taking 600–2,400 mg of garlic powder per day for 8–24 weeks (3Trusted Source, 5Trusted Source, 6).
It’s noteworthy that although garlic’s blood-pressure-lowering effects appear universal, they seem greatest in people with elevated blood pressures, compared with those with blood pressures within the normal range (5Trusted Source).
SUMMARY
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?
Allicin, the main active compound in garlic, is thought to be largely responsible for garlic’s blood-pressure-lowering properties.
Research suggests that allicin may prevent the production of angiotensin II, a compound responsible for increasing blood pressure by causing your blood vessels to tighten up or contract (1Trusted Source, 2Trusted Source).
By preventing the production of angiotensin II, allicin’s effects make it easier for your blood to flow freely, in turn, reducing your blood pressure.
Allicin also appears to increase the production or availability of hydrogen sulfide and nitric oxide, two compounds crucial for regulating blood pressure levels (1Trusted Source, 7Trusted Source).
Moreover, experts believe that garlic’s anti-inflammatory and antioxidant properties may further contribute to garlic’s ability to reduce or prevent rises in blood pressure levels (1Trusted Source, 2Trusted Source, 7Trusted Source).
SUMMARY
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 has been used for over 5,000 years to prevent and treat disease, with few reports of side effects (1Trusted Source).
To date, the majority of studies suggest that garlic supplements are very safe. The most commonly reported side effects include garlic breath, taste, or body odor.
Stomach upset, gas, reflux, or abdominal pain are also somewhat common, but complaints generally remain minor (6).
Other side effects may include hypersensitivity, headaches, dry mouth, coughs, hot flushes, mouth ulcers, and drowsiness, but these are considered rare (6).
Side effects appear to be most common when eating large quantities of garlic, and less common when garlic powder supplements or aged garlic extracts are used (1Trusted Source).
Large intakes of garlic, whether through diet or supplements, may interact with certain medications, such as those used to thin the blood. If you’re currently taking medications, speak with your healthcare provider before drastically increasing your garlic intake .
SUMMARY
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.
In Closing…
Garlic is a safe and effective natural blood-pressure-lowering remedy.
It can be consumed in various forms, including raw garlic, garlic oil, aged garlic extracts, and garlic powder supplements.
Relatively large doses are needed before effects are noticeable, but these remedies appear to be as effective as conventional blood pressure medications, with much fewer side effects. Therefore, using garlic as a natural blood-pressure-lowering remedy may be worth a try.
Still, be sure to speak with your healthcare provider before adding a garlic supplement to your routine, especially if you’re taking medications or have an underlying health condition.
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