Stamox beetroot sport nutrition Oxy-plus powder for VO2 max endurance and recovery.
Person scooping Stamox beetroot sport nutrition powder to improve VO2 max
Tattooed athlete with OXY-PLUS beetroot sport nutrition for VO2 max on a running track.
Stamox beetroot sport nutrition Oxy-plus powder for VO2 max on snow with snowy mountains backdrop
Stamox beetroot sport nutrition Oxy-plus containers and shaker for VO2 max support.
Person holding Stamox beetroot sport nutrition supplement for vo2 max improvement.
A wooden spoon scoops pink OXY-PLUS beetroot sport nutrition powder for vo2 max.
Stamox beetroot sport nutrition Oxy-plus powder and shaker bottles for VO2 max boost.
1 8
All-in-One Performance Supplement

Stamox® Oxy-Plus Beetroot Powder Formulated in Norway

4.9
4000+ ATHLETE REVIEWS

Breathe easier. Hold pace longer. Recover faster. The whole-root matrix — without the 10x batch variance of regular juice.

  • 3–5% Lower O₂ Cost: The same effort feels easier.
  • +16% Time to Exhaustion: Maintain power deep into hard efforts.
  • Faster Recovery: Reduced soreness. Fresher legs tomorrow.
  • Zero GI Distress: No earthy aftertaste. Easy on the stomach.

Peak effect 2–3 hours after intake. No stimulants. No caffeine. No crash.

Active Ingredient: Dietary Nitrate. Highest Tier of Scientific Evidence · IOC Consensus & AIS Group A

450,00 NOK 450,00 NOK
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19 Years
R&D
Anti-Doping
Tested
Formulated
In Norway
12-Week Guarantee Measurable results or your money back.
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"Research-driven, easy to use, and gentle on the stomach."

Ole-Bernard C. Fuskevåg · Professional Norwegian Triathlete & Blanktjern Coach

The Choice of Champions

Cyclists on a podium celebrating endurance wins, boosting VO2 max with stamox beetroot sport nutrition.

380w @ 145bpm vs 153bpm

"I can maintain a 380-watt threshold at just 145 bpm, compared to 153 bpm without it — my heart rate dropped 8 beats."

— Arvid Johannesen, Norwegian & Nordic Champion Cyclist
ATHLETE DATA

Elite Performance Data

+10W / -10 BPM

LT2 WORKOUT METRICS (4 WEEKS)

RÉMI BURY RCS FRENCH CYCLIST
82% → 88%

LACTATE THRESHOLD INCREASE

SOPHIE SOUWER X2 WORLD CHAMPION ROWER
+2.6%

MAX POWER JUMP (448 TO 460W)

JACK BILLYARD GRAVEL RECORD HOLDER
" "

What Stamox Does

One formula. Full-root matrix. Same result every session.

Athlete wearing a VO2 Master mask for sport nutrition and VO2 max testing.

Oxygen Efficiency — Same Watts, Less Oxygen

Nitrate converts to nitric oxide, widening blood vessels and improving blood flow to working muscle. Research shows a 3–5% reduction in the oxygen cost of exercise.
Triathlete pouring water on head, optimized for stamox beetroot sport nutrition vo2 max.

Repeatable Power — Across Repeated Efforts

Nitric oxide supports muscle contractility during oxygen-limited efforts. A 2025 review of 180 studies confirmed gains in peak power and muscular endurance.
Cyclist in aerodynamic position for stamox beetroot sport nutrition vo2 max endurance.

Faster Recovery — Bounce Back Sooner

Betalains and polyphenols limit the oxidative stress and inflammation that follow hard sessions. Strength recovery at 72h. Reduced soreness at 48–72h.
Cyclist celebrating victory on indoor track with Garmin branding, showcasing endurance and power

Full-Root Matrix — Predictable Every Batch

Nitrates, betaine, and betalains in one formula. Unlike regular beetroot juice, which varies up to 10x by batch.

Verified Athlete Data

Thomas Elholm

Thomas Elholm

x2 Gold National Champion Rower

"VO₂ max from 72.1 to 76.6 in 4 months. A jump that big is highly unlikely through training alone."
Connor Rogers

Connor Rogers

Runner - 5km 14:27 · 10km 30:29

"I've found the missing link in my running with Stamox. The data doesn't lie: 166 bpm on 3:03/km reps."
Omar Hassan

Omar Hassan

Fastest Danish Marathon Runner, 2:12:17 Copenhagen

"Stamox improved oxygen efficiency and sustained the engine when it mattered. The result: 2:12:17."
Maicol Petta

Maicol Petta

Ironman Italy AG Champ

"Heart rate was 5-6 bpm lower at the same intensity using Stamox."
Dawid Szvala

Dawid Szvala

Cyclist

"My heart rate on the same wattage dropped around 15 bpm — which in my opinion is crazy."

How It Works

Dietary nitrate converts to nitric oxide in the body. Plasma nitrite peaks 2–3 hours after intake.
Blurred action shot of an athlete for beetroot sport nutrition to boost vo2 max
THE SCIENCE

One of the most studied ingredients in sport.

3–5%
Lower oxygen cost during submaximal exercise (Bailey et al.)
16%
Longer time-to-exhaustion in controlled trials (Bailey et al.)
2–3 hrs
Peak plasma nitrite after intake
IOC Listed among supplements with good evidence of performance benefits
AIS Classified Group A — the highest evidence tier

20 meta-analyses · 180 studies · 2,672 participants. (Poon et al., 2025)

Whole beetroot outperforms isolated nitrate salts. (Silva et al., 2022)

READ THE FULL SCIENCE →

Individual results vary.

Close-up of fresh, raw purple beetroots with water droplets
STAMOX VS REGULAR BEETROOT JUICE

Can I just drink
regular beetroot juice?

BENEFIT
Stamox
REGULAR JUICE
Full Active Matrix
✓
Varies up to 10x by batch
Predictable Batch Quality
✓
Hard to quantify
19 Years Norwegian R&D
✓
Unknown origin
Anti-Doping Tested
✓
Untested / unknown
Gentle on the stomach
✓
Risk of stomach upset

Regular juice varies by batch, origin, and purity. Stamox delivers the exact same formula every time. READ THE SCIENCE →

Hamza Saeed

Hamza Saeed

Performance Coach

"A game-changer for athletes with sensitive digestion. Elite performance benefits while keeping my GI happy."
MarcoValerio Ciminelli

MarcoValerio Ciminelli

Italian Cyclist

"I've used other beetroot powders, but Stamox is significantly better. It has a lighter taste, and is vastly easier on the stomach pre-workout."
Jente Michels

Jente Michels

x2 European Champion, Alpecin‑Deceuninck

"The purest beetroot powder on the market. Boosted my power and VO₂ max — helped me become U23 European Champion."
Portrait of a man with glasses, representing research for stamox beetroot sport nutrition VO2 max.

Dr. Nils Reither

Nineteen years. One formula.

Founded in Norway in 2007 by Dr. Nils Reither, DVM (Utrecht, 1990). Nineteen years of research into blood flow and oxygen efficiency — and ongoing studies with the University of Applied Sciences Upper Austria.

Read Our Story →

Session Intensity Guide

Peak effect 2–3 hours after intake.

Session Dose Timing
Recovery / Easy Optional Anytime
Moderate / Tempo 1–2 tbsp 2–3 hrs prior
Hard Intervals / Threshold 2–3 tbsp 2–3 hrs prior
Race Week Loading 2 tbsp Daily, 5–7 days out
Race / Key Event 2–3 tbsp 2–3 hrs prior

Double sessions: take one dose before each.

1 tbsp = 10g · 2 tbsp = 20g · 3 tbsp = 30g

Not just for race day.

Nitrate benefits accumulate. Load daily during hard training blocks — the effects build over 3–6 days and support recovery between sessions.

How to Mix

Stamox beetroot sport nutrition powder being poured into a glass to improve VO2 max

01 / Measure

1 tablespoon = 10g. Use the scoop provided or a standard kitchen tablespoon.
Athlete mixing Stamox beetroot sport nutrition powder for VO2 max on a running track.

02 / Mix

Add to 500ml cold water. Liquid first, then powder. A shaker or milk frother gives the smoothest mix — no clumps, no grit.
Three containers of Stamox beetroot sport nutrition powder for VO2 max endurance.

03 / Drink

Let it sit for 2 minutes before drinking. This gives the powder time to fully dissolve.
Glass of deep red beetroot juice for sport nutrition and VO2 max boost

Flavour

Slightly earthy, naturally sweet. Add a squeeze of citrus to brighten the taste, or blend into a smoothie or yoghurt.
Critical Constraint

Avoid mouthwash, tongue scraping, and mints after intake—antiseptics destroy the oral bacteria needed for nitrate conversion.

How the Pros Take Stamox

Verified loading protocols from world-class endurance athletes.

Runner in race gear, optimizing VO2 max with beetroot sport nutrition for endurance.

YOHAN ZARADZKI · Belgian Champ · 2:12 Marathoner

1 tbsp easy days · 2 tbsp threshold · 3 tbsp long runs
Two cyclists in aero gear training by the ocean, optimizing vo2 max with beetroot sport nutrition.

GILBERTO NEIROTTI · AG Ironman Champion 

2 tbsp daily for 5 days pre-race · 3 tbsp race morning
Cyclist celebrating victory, focusing on endurance and VO2 max for sports nutrition.

JENTE MICHELS · 2x European Champion

2 servings daily for 10 days before stage race blocks
EXPLORE ALL ATHLETE PROTOCOLS & GUIDES

Raw Data & Case Studies

Graph showing +6.0% VO2 max elevation and peak capacity delta for beetroot sport nutrition.

+6.0% VO₂ Max — Professional Cross-Country Skier

Lab-verified. Peak oxygen uptake increased while submaximal blood lactate dropped. Over the Stamox protocol block.

Read Case Study →
kg for stamox beetroot sport nutrition vo2 max.

+2.6% Power — Jack Billyard, Ultra-Endurance Cyclist

Threshold capacity: 4.48 → 4.60 W/kg across 6 weeks.

Read the Case Study →
Bar charts showing lower BPM and RPE after using stamox beetroot sport nutrition for vo2 max.

−8 to −15 BPM — Marco V., Cyclist

Identical threshold wattage. Lower cardiac strain. Telemetry logged.

Read Case Study →

FAQ

Raw beetroot powders contain fibers and oxalates that cause stomach issues during hard efforts. Stamox is a highly refined extract—we isolate the active matrix and remove the fibrous compounds for maximum tolerability. However, as with any sports nutrition, we always recommend testing your dosing protocol in training before using it on race day.

You would have to drink a lot of "regular" beetroot juice to achieve a good effect, and the amount you need to drink will vary enormously.

There are many types of beetroot juice available for purchase. But the "strength" of these is not further described, defined and tested. You can use beetroot or beetroot juice, but the effect will be unpredictable and usually less effective, or have zero effect. Plus, our extraction preserves the full beetroot matrix—we don't strip out the betaine and betalains like generic powders do.

Generic beetroot is unpredictable, and you can't build a serious training program on guesswork. Stamox provides consistent, measurable results trusted by elite athletes for 19 years.

Yes. Stamox undergoes rigorous testing by the Anti-Doping Laboratory in Cambridge.

They confirm it is 100% free from prohibited substances and natural contaminants. We regularly submit batch samples and can provide certification documents upon request.

Two tablespoons of Stamox deliver approximately 300 mg of natural dietary nitrate (our extract averages a highly consistent 1.5% nitrate content).

Taking isolated, synthetic nitrates won't give you the same performance boost. The real power of Stamox is the synergy. You are getting that precise nitrate dose working together with the plant's natural antioxidants, betalains, and betaine. That full-spectrum matrix is what actually drives the lower heart rate and faster recovery.

Premium red beetroot extract (Beta vulgaris) with a maltodextrin carrier.

Slightly earthy, naturally sweet. Mix with cold water and lemon. No GI distress.

Mix 1 tablespoon into 500ml water, juice, or your pre-workout. For the smoothest mix: liquid first, then powder, wait 2 minutes, stir (or use a frother). Add a splash of lemon or orange to brighten the taste and boost absorption. Also great in smoothies or yoghurt.

Shipping

Free across Europe over €175. No customs within EU, UK & Norway.*

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12-Week Results Guarantee

Measurable results or your money back.

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Personal Protocol Support

Race or dosage questions? Email us.

info@stamox.com