What exactly is the 28-Day Oxygen Efficiency Protocol and how can it help me?

The 28-Day Oxygen Efficiency Protocol is a free, actionable plan designed to measurably enhance your VO₂ max, boost your endurance, and increase your power output. It's a structured approach to improving how efficiently your body uses oxygen, leading to better athletic performance and overall fitness.

Do I need to buy anything to access or use the oxygen efficiency protocol?

No, absolutely not! The 28-Day Oxygen Efficiency Protocol is completely free. There is no purchase necessary to download the protocol or to follow the plan. We want to make improving your fitness accessible to everyone.

How do I get started with the 28-Day Oxygen Efficiency Protocol?

Getting started is simple! You can read the full protocol directly on this page to understand the steps. For a more convenient experience, you can also grab the printable PDF version, which includes helpful weekly tracker sheets to monitor your progress throughout the 28 days.

What kind of results can I expect from following this oxygen efficiency protocol?

Our goal with the 28-Day Oxygen Efficiency Protocol is to help you see measurable improvements in your VO₂ max, endurance, and power. Many users find they can perform better for longer and with more intensity. The protocol encourages you to track your own data, so you can see the specific impact it has on your body.

Oxygen Efficiency Protocol | 28-Day Endurance Plan

Stamox beetroot sport nutrition powder for VO2 max, endurance and power.

Your 28-Day Protocol

Prove it to yourself.

No purchase necessary. Read the full protocol below, or get the printable PDF with weekly tracking sheets.

Get the Printable PDF + Trackers →

The 4 Golden Rules

Timing

Peak effect 2–3 hours after consumption.

Stamox beetroot sport nutrition powder for VO2 max in a black container with a scoop.

Avoid Mouthwash

No mouthwash, tongue scraping, or breath mints on Stamox days. These kill the bacteria that make the pathway work.

Stamox beetroot sport nutrition drink to support VO2 max in a chilled glass

Taste & Blend

Unflavoured, whole-food matrix. Blends into water, smoothies, yogurt, porridge, or pre-workout.

Cyclist in aero helmet and jersey, promoting stamox beetroot sport nutrition for vo2 max

Stamox-Loading

Daily intake for 3–7 days before a race saturates muscles with nitrates. Greater performance boost when it counts.

What Athletes Are Proving

Thomas Elholm

x2 Gold National Champion Rower

"VO₂ Max went from 72.1 → 76.6 in 4 months. Such a jump is highly unlikely through training alone."

Maicol Petta

AG Ironman Champion

"Heart rate 5 to 6 bpm lower at the same pace. Same intensity, less strain."

MarcoValerio Ciminelli

Italian Cyclist

"Significantly better than other beetroot powders. Lighter taste, dissolves easily, easy to digest."

Dosage General Guidelines

Tattooed athlete on a running track using stamox beetroot sport nutrition for vo2 max.

01 / Baseline Dose

Mix 1 Tablespoon (~10g) into 500ml water, 2–3 hours before training to optimise daily oxygen economy.

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

02 / Racing Protocol

Mix 2-3 tbsp (~20-30g) with 500ml water, 2-3 hours before start. Events over 1 hour take another 2‑3 tbsp right before the start.

Person preparing stamox beetroot sport nutrition powder to boost vo2 max

03 / Loading-Phase

Take your race‑day dose (2‑3 tbsp) daily for 3‑7 days before the event to fully saturate your body.

Close-up of red beetroot powder dissolving in water with bubbles for sport nutrition and VO2 max.

04 / Daily Health

1 tsp to 1 tbsp per day. Add to water, smoothies, yogurt, porridge, or shake.

Pro-Tips

Blending

For smoothest texture, add a splash of water first, then add powder. Add remaining water. Let sit 2‑3 minutes, then stir. Use a frother or blender for best results.

Flavour Hack

Add a squeeze of lemon or lime. Natural citric acid keeps nitric oxide active longer — and brightens taste.

Week 1: Foundation & Habit

Look for: Steady energy, no mid-morning crash.

Day

1-3

Dose

1 tbsp

Timing

Morning

Action

Test how your body respons to a new product. Drink in the morning.

Day

4-7

Dose

1 tbsp

Timing

2-3 pre training

Action

Baseline day. Log a familiar workout. Record HR, RPE, time/power. This is your training starting point.

Stamox beetroot sport nutrition for VO2 max with supplement jars, bottle, and mixed drink.

Week 2: Pre-Workout Precision

Look for: Same pace = lower HR. Same HR = faster pace

Day

8-13

Dose

1-2 tbsp

Timing

2-3 pre training

Action

Optional/1 tbsp on easy days, 1-2 tbsp before hard sessions.

Day

14

Dose

2 tbsp

Timing

2-3 pre training

Action

Mid-point check-in. Compare this week's RPE and HR to Week 1.

Week 3: Loading & Saturation

Goal: Saturate nitrate stores for peak aerobic capacity.

Day

15-20

Dose

1-2 tbsp

Timing

2-3 pre training

Action

Optional/1 tbsp on easy days, 1-2 tbsp before hard sessions.

Day

21

Dose

2 tbsp

Timing

2-3 pre training

Action

Mid-point benchmark. Re-test your Day 1
workout. Record the difference.

Week 4: PeakPerformance & Proof

Goal: Prove it to yourself.

Day

22-27

Dose

1-2 tbsp

Timing

2-3 pre training

Action

Continue logging.

Day

28

Dose

2 tbsp

Timing

2-3 hrs before benchmark

Action

Final test. Re-run your Day 1 benchmark.
Same route, same conditions.

Compare: Day 1 vs. Day 28. Heart rate. RPE. Time/Power. This difference is your Stamox edge.

Stamox beetroot sport nutrition VO2 max 28-day oxygen efficiency protocol performance tracker.

You just proved something most
athletes never do.

The difference between Day 1 and Day 28 is your data. Your proof. Just oxygen efficiency, measured.

Share your results with us: Tag @stamox or submit your results to eirin@stamox.com — and you'll earn 15% off your next order.

Keep going. The protocol doesn't stop at week 4. Every block, every season, every race — Stamox is your edge.

Offload. Reload. Repeat.

Stamox beetroot sport nutrition VO2 max dosage and timing instructions.

Ready to Fuel the Protocol?

1 6

Stamox Oxy-Plus — Beetroot Powder Formulated in Norway

Generic beetroot powder varies by up to 10x in nitrate content. One scoop works. The next doesn't. That unpredictability makes a 28-day protocol impossible.

View details

€42,95 EUR

12-week guarantee. Measurable improvement or your money back.