Introduction
Athletes often think carefully about timing.
When should you eat before training?
When should you drink electrolytes?
When should you take protein?
And when should you drink oxygenated water?
There is currently no established best time to drink it.
Researchers have tested oxygenated water at different points around exercise. Some studies have used it before training, while others have included it before, during and after a session. Because these timings have not been directly compared, there is no evidence that one is better than another. (1–3)
That means oxygenated water can be approached in a practical way.
It may fit:
- Before exercise
- During training
- After a session
- At another convenient point during the day
The most suitable time depends on your activity, hydration needs and wider routine.
Before exercise
Starting exercise adequately hydrated is one of the simplest ways to support performance.
Beginning a session with a meaningful fluid deficit can increase perceived effort and affect performance, particularly during prolonged exercise or training in the heat. (4)
For that reason, many athletes make hydration part of their preparation.
Oxygenated water may fit naturally into that routine. It can be consumed:
- Before leaving home
- While travelling to training
- During a warm-up
- Before a race or event
Some oxygenated-water studies have also used it before exercise begins. (2,3)
However, this does not prove that drinking it immediately before training produces better results.
In research, participants are often given the same drink at the same time so that later measurements can be compared fairly. The timing may therefore be part of the study design rather than evidence of an ideal pre-exercise window.
Current evidence has not shown that oxygenated water consistently improves:
- Speed
- Strength
- VO₂ max
- Time to exhaustion
- Arterial oxygen saturation
when compared with regular water. (1,5)
The practical reason to drink it before exercise is therefore straightforward:
It can form part of beginning the session adequately hydrated.
During exercise
Once training begins, hydration needs depend on the demands of the session.
The body loses fluid through sweat, but the amount varies according to:
- Exercise intensity
- Session length
- Temperature
- Humidity
- Individual sweat rate
For many shorter workouts, arriving adequately hydrated and drinking according to thirst may be enough.
Longer, hotter or more demanding sessions may require a more structured hydration plan.
This is where portability becomes useful.
Because oxygenated water is packaged like bottled still water, it can be carried and consumed wherever an athlete would normally drink.
For example:
- During a gym workout
- On a long run
- During a cycling session
- Between HYROX stations
- Between competition rounds
This allows oxygen-enriched water to fit into training without requiring:
- Specialist equipment
- A fixed location
- A separate oxygen session
- A major change to an existing routine
That does not mean it should replace other elements of sports nutrition.
During prolonged endurance exercise, athletes may also need:
- Sodium
- Carbohydrates
- Additional calories
- Other electrolytes
These should still form part of the wider hydration and fuelling plan.
After exercise
When training ends, the body begins the recovery process.
It starts to:
- Replace lost fluid
- Restore energy stores
- Repair stressed tissue
- Allow cardiovascular function to return towards baseline
Hydration is one part of that process.
Oxygenated water can therefore also be consumed after exercise as part of rehydration.
This stage has attracted research interest because some studies have examined physiological responses associated with exercise and recovery.
These include:
- Blood lactate concentration
- Tissue oxygenation
- Hydration status
- Blood pressure recovery
- Exercise metabolism
These measurements can help researchers understand how the body responds after training.
However, they must be interpreted carefully.
A change in a physiological marker does not automatically prove faster recovery or improved performance.
What does the research say?
Earlier oxygenated-water studies focused mainly on whether it could improve athletic performance.
Researchers looked at measures such as:
- Aerobic capacity
- Exercise duration
- Running or cycling performance
- Blood oxygen saturation
- Lactate responses
Overall, the findings were limited or inconsistent. (1,5)
More recent research has taken a broader approach.
Rather than looking only at whether someone runs faster or exercises for longer, researchers have also examined what happens inside the body during and after exercise.
Research associated with London South Bank University reported observations involving:
- Lower post-exercise blood lactate
- Increased tissue oxygenation
- Changes in hydration status
- Faster blood pressure recovery after exercise (3)
Research associated with the University of Roehampton also investigated selected metabolic responses during steady-state exercise. (2)
These findings are worth exploring, but they do not prove that oxygenated water guarantees better performance or faster recovery.
Important questions remain around:
- Study size
- Participant type
- Research design
- Statistical significance
- Independent replication
- Real-world sporting relevance
Further research is needed before firm conclusions can be made.
So when should you drink it?
The available evidence does not identify one ideal timing strategy.
That means the most practical approach is to use oxygenated water where it naturally fits into your hydration routine.
Before exercise
This may suit people who want to:
- Begin training adequately hydrated
- Include it in their warm-up routine
- Carry a drink while travelling
During exercise
This may suit:
- Longer training sessions
- Hot-weather exercise
- Events with several stages
- Athletes who prefer to drink throughout training
After exercise
This may fit into:
- Rehydration
- Post-training nutrition
- Travel home from training
- The wider recovery routine
Away from exercise
Oxygenated water can also be consumed at another convenient point during the day.
This may suit people who:
- Train later in the day
- Complete more than one session
- Travel frequently
- Want a portable oxygen-enriched hydration option
The key point is not that every timing produces the same effect.
It is that research has not yet shown one timing to be consistently superior.
Where KURE fits
KURE was developed to make oxygen-enriched hydration more accessible.
Its bottled format means it can be carried and consumed:
- Before training
- During exercise
- After a session
- At work
- While travelling
- Between activities
This is one of its main practical differences from other forms of oxygen support, which may rely on equipment, specialist settings or fixed appointments.
KURE brings oxygen-enriched spring water into a portable format that fits around the moments when people already hydrate.
It does not require a separate process.
Instead, it can fit naturally into an existing hydration routine.
KURE should still be viewed alongside the wider foundations of performance:
- Appropriate hydration
- Balanced nutrition
- Good sleep
- Progressive training
- Sufficient recovery
It does not replace these fundamentals.
Frequently asked questions
Should I drink oxygen water before or after exercise?
Both can fit.
There is no established best time, so the most practical option depends on your hydration needs and training routine.
Can I drink oxygenated water during exercise?
Yes.
It can contribute to fluid intake during training. During prolonged sessions, carbohydrates and electrolytes may also be needed.
Does oxygenated water improve recovery?
Some studies have reported differences in selected physiological markers after exercise. (2,3)
More independent research is needed before concluding that it consistently improves real-world recovery.
Can KURE be consumed away from exercise?
Yes.
Its portable format allows it to be included in hydration at another point during the day, rather than only around training.
Key takeaways
- There is no established best time to drink oxygenated water.
- Research has tested it at different points around exercise.
- Those timings have not been directly compared.
- It can fit before, during or after exercise.
- It can also be consumed at another convenient point during the day.
- KURE’s portable format makes oxygen-enriched hydration easier to include in an existing routine.
- It should not replace carbohydrates or electrolytes when these are required.
- Current research has identified several physiological responses, but the evidence is still developing.
Conclusion
Oxygenated water does not belong to one fixed stage of training.
It can be consumed before exercise, carried during longer sessions, included in post-training rehydration or used at another convenient point during the day.
For KURE, portability is central to that flexibility.
It makes oxygen-enriched hydration accessible without requiring specialist equipment, a fixed location or a separate routine.
The wider foundations still matter most:
- Training
- Nutrition
- Hydration
- Recovery
- Sleep
KURE can complement those habits while allowing athletes to include oxygen-enriched spring water wherever it best fits their day.
References
- Leibetseder V, Strauss-Blasche G, Marktl W, Ekmekcioglu C. Does Oxygenated Water Support Aerobic Performance and Lactate Kinetics? International Journal of Sports Medicine. 2006;27(3):232–235. https://doi.org/10.1055/s-2005-865633
- University of Roehampton. Acute Oxygenated Water Ingestion Altered Selected Metabolic Responses During Steady-State Exercise.
- London South Bank University. Investigation into the Physiological Effects of Oxygen-Enriched Water During Exercise and Recovery.
- American College of Sports Medicine. Exercise and Fluid Replacement.
- Wilber RL. Does Oxygenated Water Enhance Athletic Performance? British Journal of Sports Medicine. 2006;40(9):740–741. https://bjsm.bmj.com/content/40/9/740
