Same power. Less oxygen." Same power. Less oxygen."
19 Years R&D · Anti-Doping Tested · Formulated in Norway

Since 2007. Trusted by Champions.

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

"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
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What Stamox Does

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

Make Your Goal Pace Feel Easier

Your muscles pull oxygen from blood more efficiently. The same pace costs less. Your heart rate stays lower for the same watts.
Triathlete pouring water on head, optimized for stamox beetroot sport nutrition vo2 max.

Delay The Wall

Nitric oxide widens blood vessels. More oxygen reaches working muscle. You hold your pace deeper into the session before fatigue arrives.
Cyclist in aerodynamic position for stamox beetroot sport nutrition vo2 max endurance.

Bounce Back Faster

Hard training creates inflammation. The betalains and polyphenols in the whole root help clear waste and reduce soreness. Fresher legs tomorrow.
Cyclist celebrating victory on indoor track with Garmin branding, showcasing endurance and power

Clean Performance

Whole-root matrix. No caffeine. No jitters. No GI distress. Stamox also supports healthy blood pressure, liver function, and daily circulation.
Portrait of a man with glasses, representing research for stamox beetroot sport nutrition VO2 max.

Founded in Norway in 2007. Nineteen years of research into blood flow and oxygen efficiency.

Read Our Story →
Close-up of fresh, raw, wet red beetroots with water droplets.
STAMOX VS REGULAR BEETROOT JUICE

Can I just drink
regular beetroot juice?

BENEFIT
Stamox
REGULAR JUICE
Full-Root Matrix
✓
Varies heavily by batch
Potency per serving
✓
Hard to quantify
19 Years Norwegian R&D
✓
Unknown origin
Anti-Doping Tested
✓
Untested / unknown
Gentle on the stomach
✓
High risk of GI upset
SHOP OXY-PLUS →
Blurred action shot of an athlete for beetroot sport nutrition to boost vo2 max
THE SCIENCE

One of the most studied ingredients in sport.

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 →
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
Stamox beetroot sport nutrition Oxy-plus powder for VO2 max endurance and recovery.
Stamox beetroot sport nutrition Oxy-plus powder for VO2 max on snow with snowy mountains backdrop
Tattooed athlete with OXY-PLUS beetroot sport nutrition for VO2 max on a running track.
Person scooping Stamox beetroot sport nutrition powder to improve VO2 max
Stamox beetroot sport nutrition VO2 max supplement and water bottle in a gym bag with sneakers
A wooden spoon scoops pink OXY-PLUS beetroot sport nutrition powder for vo2 max.
Stamox beetroot sport nutrition Oxy-plus containers and shaker for VO2 max support.
Person holding Stamox beetroot sport nutrition supplement for vo2 max improvement.
1 8

Stamox® Oxy-Plus Beetroot Endurance Supplement

4.9
4000+ ATHLETE REVIEWS

Beetroot powder for endurance athletes.

  • Same pace, less effort: 3–5% lower O₂ cost*
  • Delay fatigue: 4–25% longer to exhaustion*
  • Clean performance: Zero GI distress. No cramps. No crash.
Shop Oxy-Plus →

12-Week Guarantee: Measurable results or your money back

Free shipping: Over €175 · No customs within EU, UK & Norway

*Controlled trials; effect varies by dose, fitness, and protocol. Active Ingredient: Dietary Nitrate · AIS Group A Evidence Class · IOC Consensus Reference.

The whole root, not an extract.

Four actives working together: nitrate, betaine, betalains, polyphenols. Natural antioxidants. Nothing isolated. Nothing synthetic.

SEOon_MoveToTrash_1_instagram-image_db40995d-2f8c-4642-b651-bb2db0606a50_09b86234-29c6-4fa5-b39d-5cf833ecd435.jpg

Team Stamox

Maciek Maślanko

Maciek Maślanko

Polish Champion & World Championship Medalist

"Stamox helped me win medals at the Polish, European, and World Championships. The predictable effect — peak performance 2–3 hours after taking it — lets me plan every session with precision."
Kev Jackson

Kev Jackson

Hyrox Pro Athlete, World Championships Qualifier

"VO₂ max from 54 to 60 in 3 months. Resting heart rate: 37 bpm. Stamox has become a daily staple in my nutrition. Lower heart rate during training. Faster recovery. I trust it 100%."
Elias Knoll

Elias Knoll

Elite Triathlete, 2nd Fastest Overall at Triathlon Bundesliga Kraichgau

"Probably my best performance to date. The real game-changer — increased efficiency and a lower heart rate — comes from the cumulative effect of 6 weeks of consistent use."
Filippo Pellegrini

Filippo Pellegrini

Italian On Runner

"With Stamox I found really better recovery. In extreme heat, with fatigue from the days before, I had feelings of ease and oxygenation I'd never had before."
Omar Hassan

Omar Hassan

Danish Marathon Runner, 2:12:17 CPH Marathon — Fastest Danish Runner

"High-altitude training in Kenya was the cornerstone. Stamox, taken daily throughout the camp, improved oxygen efficiency and sustained the engine when it mattered. The result: 2:12:17. Fastest Danish runner at the Copenhagen Marathon."
As featured in QG, October 2026

Man drinking Stamox beetroot sport nutrition for VO2 max with St Paul's Cathedral in background

Stamox beetroot sport nutrition for VO2 max powder and shaker in a black gym bag

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.

Regular beetroot juice varies enormously in strength — one bottle may work, the next may not. Stamox delivers a consistent, measured dose every scoop — with the full beetroot matrix (nitrates, betaine, betalains). 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.
Ready to dial in your protocol? " Ready to dial in your protocol? "

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