Body Handbook Catalogue Profile Ranking
Food BODY HANDBOOK
Food Β· Β§231
Beets and Dietary Nitrate
A daily glass of beet juice drops resting blood pressure by roughly the same few points as a starter pill, at the cost of a serving of vegetables Siervo et al. 2013. The active thing is inorganic nitrate, also dense in arugula, spinach, and chard. Here's the catch almost nobody knows: it only works because bacteria on your tongue convert that nitrate, so daily antibacterial mouthwash quietly cancels the whole effect. Get that one thing right and a small habit does real cardiovascular work.
Do Β· Daily Evidence Moderate Chapter Food

The blood-pressure case is the strong one. A daily beet-scale dose of nitrate drops resting systolic pressure about three to five points 1 2. In untreated hypertensive adults on a daily glass, it held near eight points across four weeks on 24-hour monitoring 3. Two points of usual systolic tracks about ten percent less stroke death across middle age, so a few points is not nothing 4.

The exercise effect is the second draw. A dose a few hours before submaximal work lowers the oxygen cost of the same pace by about five percent 5, and recreational cyclists ride a measured time trial two to three percent faster 6. It works because there's a spare route to nitric oxide, the body's own vasodilator, that kicks in most where the main one falters: low oxygen, a working muscle, a stiff artery 7.

Any of these hits the working dose of 300 to 500 mg of nitrate a day 8. Pick the one you'll actually keep up.

Pink urine for a day is beeturia, a harmless pigment in about one in eight people.

What you'll notice. If you own a home cuff, the morning reading drifts a few points lower within days; without one, the change is silent 9. A hard workout two hours after a dose feels marginally easier at the same heart rate. Over a year, training gains compound on the efficiency bump, and if your pressure was borderline, the next visit leans toward "keep watching" instead of "start a pill" 3. The 18-year cohort puts the top vegetable-nitrate quintile at about 17% lower cardiovascular death than the bottom β€” the pattern the daily serving anchors, not the beet alone 10.

The fine print β€” when to skip it, and what people get wrong

Mouthwash. Twice-daily antibacterial rinse cuts the nitrite rise about 85% 11 and pushes hypertensives' pressure back up 12. A pre-dentist rinse is fine; the daily habit isn't.

Single dose, elite, or all-out. One shot in an untrained person often shows nothing; daily dosing reads more reliably 8. Near-elite athletes see little 13, and the effect suits steady endurance over a maximal sprint.

Not the cured-meat cancer. Vegetables carry ascorbate and polyphenols that block that reaction, and high vegetable-nitrate eaters die of cardiovascular disease less, not more 14.

Not the supplement. Aisle "nitric oxide" pills are mostly L-arginine, a thinner-backed pathway; the molecule in beets is also in arugula and spinach 15.

References
  1. 1Siervo M, Lara J, Ogbonmwan I, Mathers JC (2013). Inorganic nitrate and beetroot juice supplementation reduces blood pressure in adults: a systematic review and meta-analysis. Journal of Nutrition. link
  2. 2Bahadoran Z, Mirmiran P, Kabir A, Azizi F, Ghasemi A (2017). The Nitrate-Independent Blood Pressure–Lowering Effect of Beetroot Juice: A Systematic Review and Meta-Analysis. Advances in Nutrition. link
  3. 3Kapil V, Khambata RS, Robertson A, Caulfield MJ, Ahluwalia A (2015). Dietary nitrate provides sustained blood pressure lowering in hypertensive patients: a randomized, phase 2, double-blind, placebo-controlled study. Hypertension. link
  4. 4Lewington S, Clarke R, Qizilbash N, Peto R, Collins R (2002). Age-specific relevance of usual blood pressure to vascular mortality: a meta-analysis of individual data for one million adults in 61 prospective studies. Lancet. link
  5. 5Bailey SJ, Winyard P, Vanhatalo A, et al. (2009). Dietary nitrate supplementation reduces the O2 cost of low-intensity exercise and enhances tolerance to high-intensity exercise in humans. Journal of Applied Physiology. link
  6. 6Lansley KE, Winyard PG, Bailey SJ, et al. (2011). Acute dietary nitrate supplementation improves cycling time trial performance. Medicine & Science in Sports & Exercise. link
  7. 7Lundberg JO, Weitzberg E, Gladwin MT (2008). The nitrate-nitrite-nitric oxide pathway in physiology and therapeutics. Nature Reviews Drug Discovery. link
  8. 8Wylie LJ, Kelly J, Bailey SJ, et al. (2013). Beetroot juice and exercise: pharmacodynamic and dose-response relationships. Journal of Applied Physiology. link
  9. 9Webb AJ, Patel N, Loukogeorgakis S, et al. (2008). Acute blood pressure lowering, vasoprotective, and antiplatelet properties of dietary nitrate via bioconversion to nitrite. Hypertension. link
  10. 10Liu AH, Bondonno CP, Russell J, et al. (2021). Vegetable-derived nitrate intake and risk of cardiovascular disease mortality: an 18-year follow-up. European Journal of Epidemiology. link
  11. 11Govoni M, Jansson EΓ…, Weitzberg E, Lundberg JO (2008). The increase in plasma nitrite after a dietary nitrate load is markedly attenuated by an antibacterial mouthwash. Nitric Oxide. link
  12. 12Bondonno CP, Liu AH, Croft KD, et al. (2015). Antibacterial mouthwash blunts oral nitrate reduction and increases blood pressure in treated hypertensive men. American Journal of Hypertension. link
  13. 13Boorsma RK, Whitfield J, Spriet LL (2014). Beetroot juice supplementation does not improve performance of elite 1500-m runners. Medicine & Science in Sports & Exercise. link
  14. 14Hord NG, Tang Y, Bryan NS (2009). Food sources of nitrates and nitrites: the physiologic context for potential health benefits. American Journal of Clinical Nutrition. link
  15. 15Jones AM (2014). Dietary nitrate supplementation and exercise performance. Sports Medicine. link
Β·
231