Where Did the Interest in Hydrogen Come From?
In 2007, Japanese scientist Dr Shigeo Ohta published a landmark study on molecular hydrogen (H₂) and its effect on reducing oxidative stress. Since then, the number of scientific publications on hydrogen has grown exponentially — there are now over 1,200 studies available in peer-reviewed academic journals.
But why is ordinary water boring while hydrogen-rich Kangen water became so interesting to scientists? The answer lies in one word: selectivity.
Selective Antioxidant — How Is It Different?
Before we dive into the chemistry, imagine a security guard who does not detain everyone who enters a building — only the criminals. That is precisely what a hydrogen molecule does.
Most antioxidants (such as vitamin C or beta-carotene) act as general defenders — they neutralise almost every free radical, regardless of whether it is harmful or not. Some radicals are actually needed by our bodies for cellular signalling and immune defence.
Hydrogen H₂ is unique: it neutralises only the harmful hydroxyl radicals (OH•) — the most reactive of all. The radicals we need remain untouched. That is exactly why scientists consider H₂ to be an ideal antioxidant.
What Does the Scientific Research Say?
Research on H₂ covers many areas:
- Metabolism and energy: Studies suggest that hydrogen may support mitochondrial efficiency — the powerhouses of cells. Better mitochondria means more energy available to the body.
- Sports applications: Several studies have shown that athletes drinking H₂-rich water experienced faster muscle recovery and reduced fatigue.
- Ageing and longevity: In animal models, hydrogen showed an effect on cellular ageing processes.
- Neuroendocrine health support: Laboratory studies suggest H₂ influences the regulation of the stress hormone cortisol.
- Cardiovascular health support: Several clinical trials have shown a positive effect on blood vessel elasticity.
Of course, many of these studies are still preliminary — scientists do not claim that hydrogen cures diseases. But the potential is promising enough that major medical universities worldwide are conducting further research.
How Does H₂ Get Into Kangen Water?
In normal tap water there are virtually no H₂ molecules. To generate them, electrolysis is required — a process that splits the water molecule (H₂O) into its component parts.
In an Enagic ionizer:
- Water flows through the electrolysis chamber.
- Titanium (platinum-coated) electrodes apply a voltage to the water.
- Water separates into hydrogen ions (H⁺), hydroxide ions (OH⁻) and hydrogen molecules H₂.
- The alkaline side contains hydrogen-rich water at pH 8.5–9.5; the acidic side contains water at pH 2.5–6.0.
This is why Kangen water is both alkaline and hydrogen-rich. These are not two separate properties — they are the result of the same electrolysis process.
An important note: the number of electrodes matters. The Leveluk K8 has 8 electrodes, while the SD501DX has 5. More electrodes means greater H₂ production over the same period. This is one of the reasons the K8 produces water richer in hydrogen than models with fewer electrodes.
How Much Kangen Water Should You Drink Per Day?
Researchers in studies typically used 500–2,000 mL of hydrogen-rich water per day. For an everyday person, the practical recommendation is:
- Start with 500 mL per day for 2–3 weeks and observe how you feel.
- Gradually increase to 1.5–2 litres per day if you feel well.
- Drink the water within 30–45 minutes of production — that is when H₂ content is highest.
- Store in stainless steel insulated bottles to minimise hydrogen loss.
Nothing bad will happen if you drink more Kangen water — the worst that could happen is more frequent bathroom visits. But being consistent is more important than drinking large amounts sporadically.
Summary — Why Is This Worth Your Attention?
I do not drink Kangen water because I am obsessed with health. I drink it because it simply makes sense based on the available scientific knowledge. Over twelve hundred studies is not a small body of observation — it is a trend that scientists worldwide consider promising enough to invest time and resources in.
Kangen water is not a miracle cure. But every day you drink water. If you can drink water that potentially supports your body in combating oxidative stress — why would you not?
That leads to the question I leave you with today: What exactly are you drinking every day, and why?