Orthodox drugs used for treating hypertension are known to cause a wide array of adverse side effects, which is why alternative therapies like dietary supplements are growing in demand. The good news is there are many natural supplements that can help you lower your blood pressure level with little to no health consequences.1
Supplements That May Help Lower High Blood Pressure
Along with an active lifestyle and healthy dietary habits, these supplements may help reduce your high blood pressure levels safely and naturally:
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Krill
oil — Krill oil is an excellent source of omega-3
fatty acids in the form of phospholipids, making it the safest
and most effective carriers of eicosapentaenoic acid (EPA) and
docosahexaenoic acid (DHA).

Krill oil — Krill oil is an excellent source of omega-3 fatty acids in the form of phospholipids, making it the safest and most effective carriers of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA).

According to studies, EPA and DHA may help curb cardiovascular disease by preventing arrhythmia and plaque stabilization, as well as lowering elevated systemic blood pressure and heart rate.2
-
Coenzyme Q10 (CoQ10) — A 2012 study published in the journal Atherosclerosis suggests that CoQ10 supplementation may help improve the health of blood vessels3 — this may lower your risk for high blood pressure and other cardiovascular diseases.
Another study also found that CoQ10 may help lower the systolic and diastolic blood pressure of hypertensive patients without significant side effects.4
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Magnesium — Magnesium deficiency due to insulin resistance is one of the causes behind constricted blood vessels, which in turn leads to hypertension.
To help your blood vessels relax and dilate, you should maintain optimum magnesium levels.

If you're planning to take a magnesium supplement, go for magnesium l-threonate, since it's formulated for maximum absorption and it doesn't have laxative properties.
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Vitamin D — Studies have shown that vitamin D deficiency contributes to arterial stiffness and hypertension.5 It's also linked to insulin resistance and obesity, both of which are major risk factors for hypertension.

The best way to optimize vitamin D levels is through sun exposure. But if you can't get enough sun exposure regularly, you may opt to take an oral vitamin D3 supplement.
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Calcium —
Studies have shown that increasing your calcium intake may have an
antihypertensive effect, making it a useful supplement for
hypertension.6,7
Calcium — Studies have shown that increasing your calcium intake may have an antihypertensive effect, making it a useful supplement for hypertension.6,7
However, if you opt to take calcium, make sure that you balance it with your vitamin K2, vitamin D and magnesium levels, too.
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L-arginine — A study published in the American Heart Journal shows that l-arginine supplementation may help significantly lower both the systolic and diastolic blood pressure levels, since it acts as a substrate of nitric oxide synthase.8

Before you take any of the aforementioned supplements, make sure that you consult your physician first to determine the proper dosage for your needs, or to check if these supplements are suitable for your condition in the first place.
Also, if you are taking conventional prescription drugs, your physician will be able to tell you whether your proposed supplements combined with those drugs can cause adverse effects.9
Remember: Opt for Natural Sources of Nutrients First!
While the dietary supplements mentioned above may help manage your blood pressure levels and provide other valuable health benefits, keep in mind that it’s still best to optimize your body’s levels of these nutrients by adopting healthy eating habits.