The best time to drink beetroot juice for high blood pressure is in the morning on an empty stomach. Research shows reductions peak 2–3 hours after ingestion and can last up to 24 hours.
Why Morning? | Beetroot Juice for Blood Pressure
Three reasons, all backed by research.
1. Your blood pressure naturally rises in the morning.
This is the "morning surge"—a natural rise in blood pressure that occurs upon waking. For people with hypertension, this surge is often exaggerated. Drinking beetroot juice first thing counteracts this spike when it matters most.
A 2016 study by Buck et al. in the American Journal of Physiology found that morning nitrate intake led to more pronounced improvements in blood flow and vascular function throughout the day compared to evening intake.
2. Absorption is more efficient on an empty stomach.
Dietary nitrate is absorbed in the small intestine. When consumed with food, digestion competes for resources. On an empty stomach, the nitrate-to-nitric oxide pathway is more direct. Peak plasma nitrite levels are reached more reliably within the 2–3 hour window.
3. The effects build with consistency.
A 2015 study by Kapil et al. in Hypertension found that daily nitrate supplementation over 4 weeks led to sustained reductions in both systolic and diastolic blood pressure. The effects were not just acute—they were cumulative.
How Much Do You Need?
| Source | Amount Needed | Notes |
| Whole raw beetroot | 2–3 medium beets (~200–300g) | Varies by soil, season, and storage |
| Generic beetroot juice | 500ml | High sugar (25–35g), inconsistent nitrate |
| Standardised beetroot powder | 1-2 scoops (~10g-20g) | Consistent nitrate, zero sugar, lab-tested |
Step-by-Step Morning Protocol
- Wake up. Drink a glass of plain water to rehydrate.
- Mix 1 scoop of standardised beetroot powder with 300ml of cold water.
- Drink immediately. Wait at least 30 minutes before eating.
- Effects peak 2–3 hours after ingestion. Blood pressure reductions can last up to 24 hours.
- Repeat daily. Sustained improvements are seen over 2–4 weeks of consistent use.
- If you have a home blood pressure monitor, track your readings before and 3 hours after ingestion
How Long Until You See Results?
| Timeframe | Effect |
| 2–3 hours | Acute blood pressure reduction. Peak vasodilation. |
| 1–2 weeks | Consistent daily reductions. Morning surge begins to blunt. |
| 4 weeks | Sustained reductions in both systolic and diastolic pressure. |
A 2013 meta-analysis by Siervo et al. in the Journal of Nutrition confirmed significant blood pressure reductions across 16 studies, with effects strengthening over time
Frequently Asked Questions
Can I take beetroot juice with my blood pressure medication?
Consult your doctor first. Beetroot juice can amplify the effects of blood pressure medication. This is generally positive, but should be monitored.
Can I drink it at night instead?
Research suggests morning is more effective because it aligns with the body's natural blood pressure rhythm. Night-time intake is less studied.
How long does the effect last?
Acute reductions peak at 2–3 hours and can last up to 24 hours. With daily use, baseline blood pressure can remain lower long-term.
Is this safe long-term?
Yes. Dietary nitrate from beetroot is safe for daily, long-term use. No serious adverse effects are reported in the literature.
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Further Reading
Sources
- Webb, A.J., et al. (2008). Acute blood pressure lowering properties of dietary nitrate. Hypertension, 51(3), 784-790. View on PubMed →
- Kapil, V., et al. (2015). Dietary nitrate provides sustained blood pressure lowering in hypertensive patients. Hypertension, 65(2), 320-327. View on PubMed →
- Buck, C.L., et al. (2016). Influence of time of day on the ergogenic effects of dietary nitrate. Am J Physiol Regul Integr Comp Physiol, 310(7), R561-R569. View on PubMed →
- Siervo, M., et al. (2013). Inorganic nitrate and beetroot juice supplementation reduces blood pressure. J Nutr, 143(6), 818-826. View on PubMed →
- Coles, L.T., & Clifton, P.M. (2012). Effect of beetroot juice on lowering blood pressure. Nutr J, 11, 106. View on PubMed →
How We Source Our Information
Every claim on this blog is backed by peer-reviewed research and Stamox R&D data. We cite studies from PubMed, the International Olympic Committee's consensus statements, and the Australian Institute of Sport's supplement framework.
This article was last reviewed on July 2026.
