Frequently Asked Questions about Molecular Hydrogen Water
- What is molecular hydrogen water?
Molecular hydrogen water or hydrogen-rich water ( hydrogen-enriched water) means water (H2O) with dissolved hydrogen gas (H2) in it.
- Isn’t ( molecular ) hydrogen gas explosive?
Yes, it is VERY explosive. Molecular hydrogen is the most energy-dense molecule by mass.
But, when the molecular hydrogen gas is dissolved in water it is not explosive anymore,
Even when molecular hydrogen is in the air, it is only flammable above a 4.6% concentration by volume, which is not a concern when talking about molecular hydrogen water.
- Doesn’t water H2O already have hydrogen in it ?
The water molecule has 2 hydrogen atoms, chemically bound to the oxygen atom. This is different from the molecular hydrogen gas (H2), which is just two hydrogen atoms bound only to each other.The H2 -hydrogen molecules are not tied up to water H2O
In order for the dissolved molecular hydrogen gas (H2) to beneficial for humans, it must be in an unbound form, and therefore available for therapeutic benefit.
Virtually everything has hydrogen atoms in it, but those hydrogen atoms are chemically tied up with other things. In molecular hydrogen rich water, the hydrogen molecule that is shown to be therapeutic is the available water dissolved hydrogen molecule in its diatomic form, called (dissolved diatomic) molecular hydrogen.
- I thought that if water “rich in hydrogen ”, it must be acidic?
If the water is rich in positive hydrogen ions (H+). then YES, water is acidic(pH<7).
But when talking about molecular hydrogen rich water of , we’re talking about neutral (ph=7) hydrogen gas (H2), which is two hydrogen atoms tied together – hydrogen in its diatomic molecular form.
It can be confusing to hear “hydrogen water” because we usually think of hydrogen (meaning the hydrogen ion, H+) as acidic, and that is basically the definition of pH. The p stands for potential or power, meaning a mathematical exponent (in this case a logarithmic function), and the H stands for the hydrogen ion, which is just a proton and no electron. So pH literally means the logarithmic concentration of the hydrogen ion.
But when we say “molecular hydrogen rich water” we are referring to diatomic hydrogen or molecular hydrogen, which is a neutral(ph=7) gas of H2 molecules (one H2 is made of 2 atoms of hydrogen bond into a molecule), that is dissolved in the water.
- I read that if you add hydrogen to water, then it makes hydrogen peroxide?
Molecular hydrogen (H2) gas does NOT bond to NOR react with the water molecules, it just dissolves into the water. Thus it does not create some novel molecule like H4O, which would in fact be chemically impossible to form. Water has the chemical formula H2O, and hydrogen peroxide has the chemical formula H2O2, which by comparison contains an extra oxygen, not hydrogen.
Molecular hydrogen water and hydrogen peroxide are completely different.
- Since molecular hydrogen gas doesn’t dissolve very well in water, how can there even be enough for it to be beneficial?
But when we consider that molecular hydrogen is the lightest molecule in the universe, we really need to compare the number of molecules as opposed to the number of grams.
For reference, vitamin C (176.2 g/mole) weighs 88 times more than hydrogen gas (2 g/mole).
Therefore, molecular hydrogen rich water at a concentration of 1.6 mg/L would have more “antioxidant” molecules than 100 mg of vitamin C, as there are more total molecules in 1.6 mg of hydrogen compared 100 mg of vitamin C. That is, 0.8 mmoles of H2 vs. about 0.6 mmoles of vitamin C.
But more importantly, hundreds of scientific studies clearly show that these concentrations of molecular hydrogen in water are effective.
- Won’t any dissolved molecular hydrogen gas immediately evaporate out of the water?
Yes, molecular hydrogen as any gas does immediately start coming /evaporate out of the water, but it doesn’t just vanish immediately. Depending on the surface area, agitation, etc., the molecular hydrogen gas can stay in the water for a few hours or longer before it drops below a therapeutic level.
- How much molecular hydrogen water should I drink to get the benefits?
That is the same question scientists are asking and is still under investigation. However, the human studies generally provide about 1-3 mg of molecular hydrogen H2, and these doses show statistically significant benefits. So, if your molecular hydrogen water has a concentration of 1 mg/L (equivalent to 1 ppm, parts per million), then 2 liters of molecular hydrogen water will give you 2 mg of H2. Although the effective concentration for some people and some diseases may be lower and/or higher, these doses are simply what have been seen to expert benefits. (see this article also).
- Does more molecular hydrogen equal more benefits?
Maybe, maybe not…. there is obviously a minimum required amount of molecular hydrogen (water )needed to offer any health benefits, which may vary from person to person. Importantly, it appears that you cannot get too much molecular hydrogen, as it doesn’t build up in your body—you just exhale it out. In many cases there is a clear dose-dependent effect, meaning the more molecular hydrogen (water) the better or greater the effect. There are also many anecdotal reports that suggest that consuming more molecular hydrogen (water) may offer even more benefits. But more research needs to be done in this area.
- Is molecular hydrogen (water) safe (for consumption)?
YES. Molecular Hydrogen gas (in water) has been shown to be very safe at concentrations hundreds of times higher than what is being used for therapy. Here are a few examples:
Molecular Hydrogen’s safety was first shown in the late 1800s, where molecular hydrogen gas was used to locate gunshot wounds in the intestines. The reports showed that there were never any toxic effects or irritation to even the most sensitive tissues.
Another good example of its safety is that molecular hydrogen gas has been used in deep sea diving since 1943 (at very high concentrations) to prevent decompression sickness. Studies have shown no toxic effects from molecular hydrogen when at very high levels and pressures of 98.87% H2 and 1.26% O2 at 19.1 atm.
Furthermore, molecular hydrogen gas is natural to the body because after a fiber-rich meal, our gut bacteria can produce liters of molecular hydrogen on a daily basis (which is yet another benefit from eating fruits and vegetables).
In short, molecular hydrogen gas is very natural to our bodies, not like a foreign or alien substance that can only be synthesized in a chemistry lab.
- When was molecular hydrogen’s therapeutic benefits first discovered?
The earliest account of molecular hydrogen gas having medicinal properties was in 1798, for things like inflammation. But, it didn’t become a popular topic among scientists until 2007, when an article about the benefits of molecular hydrogen was published in the prestigious journal of Nature Medicine by Dr. Ohta’s group.
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