Beetroot extract is a botanical supplement rich in dietary nitrates and betalains, researched for its cardiovascular, exercise performance, and antioxidant effects.

Overview

Beetroot extract is derived from Beta vulgaris, a root vegetable recognized for its high concentration of inorganic nitrate, betalain pigments (particularly betanin), and other bioactive compounds including betaine and polyphenols. The physiological effects of beetroot supplementation are primarily attributed to its nitrate content, which is converted through the nitrate-nitrite-nitric oxide pathway by oral bacteria and endogenous enzymes. This pathway provides an alternative route for nitric oxide production independent of nitric oxide synthase.

The increase in nitric oxide bioavailability following beetroot consumption has been associated with reduced blood pressure, improved endothelial function, and enhanced exercise performance. Meta-analyses of clinical trials have demonstrated modest but consistent reductions in systolic blood pressure in both normotensive and hypertensive individuals. In the context of exercise physiology, beetroot supplementation has been shown to improve oxygen efficiency, extend time to exhaustion, and enhance performance particularly in activities involving sustained submaximal effort. The magnitude of ergogenic effects appears to vary based on training status, with recreational athletes generally showing larger benefits than elite competitors.

Beetroot extract is available in numerous commercial forms including juice, concentrated shots, and powdered supplements. The betalain pigments provide additional antioxidant and anti-inflammatory properties, though these are less extensively characterized than the nitrate-mediated effects. Beetroot supplementation is generally safe, with the most common side effect being beeturia (red discoloration of urine). Individuals taking nitrate-based medications or phosphodiesterase-5 inhibitors should consult a healthcare provider before use due to potential additive hypotensive effects.

Mechanism of Action

Dietary Nitrate — The Nitrate-Nitrite-NO Pathway

Beetroot extract (Beta vulgaris) is one of the richest dietary sources of inorganic nitrate (NO3⁻), containing approximately 250 mg nitrate per 100 g of fresh weight. Following ingestion, salivary commensal bacteria on the posterior tongue reduce nitrate to nitrite (NO2⁻) via bacterial nitrate reductases. Nitrite is then converted to nitric oxide (NO) in the acidic stomach environment and through enzymatic reduction by xanthine oxidoreductase, deoxyhemoglobin, and myoglobin in tissues (PMID: 22248502).

Vasodilation & Blood Pressure Reduction

The generated NO activates soluble guanylyl cyclase (sGC) in vascular smooth muscle, increasing cyclic GMP (cGMP) levels and activating protein kinase G (PKG). PKG reduces intracellular calcium concentration through SERCA pump stimulation and calcium channel inhibition, causing vasodilation. Meta-analyses demonstrate systolic blood pressure reductions of 3-10 mmHg following beetroot juice supplementation, with the nitrate-nitrite-NO pathway confirmed by abolition of effects with antibacterial mouthwash (PMID: 23231777).

Exercise Performance & Mitochondrial Efficiency

Dietary nitrate from beetroot improves exercise economy by reducing the oxygen cost of submaximal exercise by 3-5%. This occurs through: (1) improved mitochondrial coupling efficiency via reduced proton leak (possibly through NO-mediated inhibition of ANT and UCP3), (2) reduced ATP cost of muscle force production by enhancing calcium handling at the sarcoplasmic reticulum, and (3) enhanced type II muscle fiber contractile function (PMID: 21284982).

Betalains & Antioxidant Activity

Beyond nitrate, beetroot contains betalains (betanin, vulgaxanthin) — nitrogen-containing pigments with potent antioxidant and anti-inflammatory activity. Betanin scavenges peroxyl radicals and inhibits COX-2 and lipoxygenase enzymes, reducing prostaglandin and leukotriene synthesis. Betalains also inhibit NF-kB signaling in activated macrophages (PMID: 25459317).

Reconstitution Calculator

Calculate your peptide dosing

Vial Size

BAC Water

Draw Volume

0.100

Syringe Units

units

Concentration

2,500

mcg/mL

Doses / Vial

doses

Vial Total

Waste / Vial

mcg

Syringe Cap.

100

units · 1mL

10 units · 0.100mL10% of syringe

How to reconstitute

1/6Gather & prepare

Set up a clean workspace with all supplies ready.

1.Wash hands thoroughly, put on disposable gloves

2.Your 5mg peptide vial (lyophilized powder)

3.Bacteriostatic water (you'll need 2mL)

4.A 3–5mL syringe with 21–25 gauge needle for reconstitution

5.Alcohol swabs (70% isopropyl)

Use bacteriostatic water (0.9% benzyl alcohol) for multi-dose vials. Sterile water is only safe for single-use.

Supply Planner

7x / week for weeks

40%

vials

doses

days/vial

leftover

Cost Breakdown

Vial price

$0.00per dose

$0.00 /week$0 /month

Store 2-8°C30 day shelf lifeSwirl gentlyFor research purposes only

Research

Reported Effects

Individual Response Variation:: Significant inter-individual differences exist in how people respond to beetroot nitrate supplementation. Dose-Dependent Effects:: Benefits correlate with nitrate dose, with higher doses generally producing stronger vascular effects. Age and Health Status:: Effects are reduced in older individuals and those with greater cardiometabolic risk factors. Sustained Benefits:: Long-term supplementation (12+ weeks) appears necessary for maximal vascular and cardiovascular improvements

Significant inter-individual differences exist in how people respond to beetroot nitrate supplementation
Benefits correlate with nitrate dose, with higher doses generally producing stronger vascular effects
Effects are reduced in older individuals and those with greater cardiometabolic risk factors
Long-term supplementation (12+ weeks) appears necessary for maximal vascular and cardiovascular improvements

Safety Profile

Common Side Effects

Gastrointestinal discomfort, including stomach cramps, bloating, and loose stools, particularly at higher doses or when consuming concentrated beetroot juice
Red or pink discoloration of urine (beeturia) and stools, which is harmless but can be alarming; occurs in approximately 10-14% of individuals
Temporary drop in blood pressure, which may cause dizziness or lightheadedness in sensitive individuals
Mild nausea, especially when taken on an empty stomach

Serious Adverse Effects

Individuals prone to calcium oxalate kidney stones should exercise caution, as beetroot is high in oxalates which can contribute to stone formation
Rare allergic reactions including rash, hives, or throat tightness have been reported
Excessive consumption may lead to accumulation of metals, as beets can bioaccumulate certain minerals from soil

Contraindications

Individuals with a history of oxalate-type kidney stones should limit intake or consult a healthcare provider before supplementing
Those with hypotension or on blood pressure-lowering medications should monitor blood pressure closely due to the nitrate-mediated vasodilatory effects
Not recommended for individuals with hemochromatosis or iron overload conditions, as beetroot contains significant iron

Drug Interactions

May potentiate the effects of antihypertensive medications (ACE inhibitors, ARBs, calcium channel blockers, beta-blockers) due to nitric oxide-mediated vasodilation
Potential interaction with anticoagulant and antiplatelet drugs, as beetroot nitrates may have mild blood-thinning properties
May affect the absorption of certain medications when taken simultaneously due to its high fiber content
PDE5 inhibitors (sildenafil, tadalafil) combined with beetroot extract may cause excessive blood pressure reduction

Special Populations

Generally considered safe during pregnancy and breastfeeding at dietary amounts, but concentrated supplements lack sufficient safety data
Pediatric use of concentrated extracts has not been well-studied; dietary consumption is considered safe
Elderly individuals on multiple medications should consult a provider due to hypotension risk

Pharmacokinetic Profile