SupplementScience

Best Supplements for Blood Pressure

Prevalence: 116 million US adults (47% of population) have hypertension

DJP
Reviewed by , MD, Board Certified Internal Medicine

This content is for informational purposes only and does not constitute medical advice. Consult your healthcare provider before starting any supplement. Full disclaimer

TL;DR — Quick Answer

The most evidence-backed supplements for blood pressure are beet root (300-500mg dietary nitrate, reduces systolic BP by 3-10 mmHg via nitric oxide), magnesium (300-500mg, particularly effective in deficient individuals), and omega-3 (2-4g EPA+DHA, modest but consistent BP reduction).

Overview

Hypertension affects approximately 47% of US adults (116 million) and is the leading modifiable risk factor for cardiovascular disease, stroke, and kidney failure. While lifestyle modifications and medications remain first-line treatments, several supplements have demonstrated meaningful blood pressure reductions in clinical trials and may serve as complementary interventions.

Top Evidence-Based Supplements for Blood Pressure

#SupplementTypical DoseEvidence
1Beet Root (Dietary Nitrate)300-500mg dietary nitrate dailyStrong
2Magnesium Glycinate300-500mg dailyStrong
3Omega-3 (EPA/DHA)2-4g EPA+DHA dailyModerate

Detailed Ingredient Guides

Frequently Asked Questions

Can beet root supplements really lower blood pressure?

Yes, beet root is one of the most well-studied natural interventions for blood pressure. The dietary nitrate in beet root is converted to nitric oxide in the body, which relaxes blood vessel walls and improves endothelial function. A meta-analysis of 22 randomized controlled trials found that beet root supplementation reduced systolic blood pressure by an average of 3.55 mmHg. Effects are typically observed within 2-3 hours of ingestion, with sustained benefits from daily supplementation over 4+ weeks.

Should I take magnesium for high blood pressure?

Magnesium supplementation is particularly effective for blood pressure in individuals who are deficient—and an estimated 50% of Americans do not meet the recommended daily intake. A large meta-analysis found that magnesium reduced systolic BP by 2 mmHg and diastolic by 1.78 mmHg on average, with significantly greater reductions in those with documented deficiency. Magnesium glycinate at 300-500mg daily is well-tolerated and may be a worthwhile addition to standard blood pressure management. Always inform your doctor about supplementation if you are on antihypertensive medications.

References

  1. (). Inorganic Nitrate and Beetroot Juice Supplementation Reduces Blood Pressure in Adults: A Systematic Review and Meta-Analysis. Journal of Nutrition. DOI
  2. (). Effects of Magnesium Supplementation on Blood Pressure: A Meta-Analysis of Randomized Double-Blind Placebo-Controlled Trials. Hypertension. DOI
  3. (). Long-Chain Omega-3 Fatty Acids Eicosapentaenoic Acid and Docosahexaenoic Acid and Blood Pressure: A Meta-Analysis of Randomized Controlled Trials. American Journal of Hypertension. DOI