We all know how important it is to drink enough water in the day—it helps keep us hydrated, alert and healthy. But for some folks, plain old water isn't enough. Seltzer, flavored, alkaline, and now hydrogen waters have all gained popularity in recent years as alt-hydration methods.

A quick science lesson: The chemical makeup of regular water is two parts hydrogen to one part oxygen (hence the name H2O). Hydrogen water is created when extra hydrogen molecules from dissolved hydrogen gas are added into regular drinking water. This means that there is more hydrogen in the water and less oxygen—which purportedly confers antioxidant benefits and improves athletic performance.

Before you ask, it's not the same thing as alkaline water. “Alkaline water is put through either electrolysis, which separates molecules before siphoning out some of the acidic ones and leaving more alkaline ones, or it has minerals added or naturally contains them to bring its pH above seven,” says says Kelly Jones, RD. But its core chemical makeup is still H2O.

More in category

How much water it takes to create 30 common items
October 22, 2020MSN
How much water it takes to create 30 common items
Fact check: The final 2020 presidential election debate
October 22, 2020MSN
Fact check: The final 2020 presidential election debate
Fact-checks from final debate between Trump, Biden
October 22, 2020MSN
Fact-checks from final debate between Trump, Biden
Number of Britons who gave up smoking more than DOUBLED after lockdown
October 22, 2020MSN
Number of Britons who gave up smoking more than DOUBLED after lockdown
Neuroscientists Unpack How Running (Even a Little) Benefits Your Brain Leaps and Bounds
October 22, 2020MSN
Neuroscientists Unpack How Running (Even a Little) Benefits Your Brain Leaps and Bounds
Walmart files lawsuit seeking to prove its pharmacists are not responsible for opioid crisis
October 22, 2020MSN
Walmart files lawsuit seeking to prove its pharmacists are not responsible for opioid crisis
Risky or necessary? COVID-19 vaccine trial expands to teens
October 22, 2020MSN
Risky or necessary? COVID-19 vaccine trial expands to teens
Remdesivir is the first FDA-approved COVID-19 treatment. Here’s what to know about it.
October 22, 2020MSN
Remdesivir is the first FDA-approved COVID-19 treatment. Here’s what to know about it.
FDA Approves Remdesivir, First Treatment for COVID-19
October 22, 2020Medscape
FDA Approves Remdesivir, First Treatment for COVID-19
Little-known FDA advisory group holds first meeting about COVID-19 vaccines
October 22, 2020MSN
Little-known FDA advisory group holds first meeting about COVID-19 vaccines
Gilead’s Remdesivir Is First Virus Drug to Get FDA Approval
October 22, 2020MSN
Gilead’s Remdesivir Is First Virus Drug to Get FDA Approval
Rollerblading is Taking Over Social Media But Can It Help Your Run Training?
October 22, 2020MSN
Rollerblading is Taking Over Social Media But Can It Help Your Run Training?
F.D.A. Approves Remdesivir as First Drug to Treat Covid-19
October 22, 2020The NY Times
F.D.A. Approves Remdesivir as First Drug to Treat Covid-19
Hispanic Women More Prone to COVID in Pregnancy
October 22, 2020WebMD
Hispanic Women More Prone to COVID in Pregnancy
CDC Expands Definition of COVID-19 Exposure From 'Close Contact'
October 22, 2020Medscape
CDC Expands Definition of COVID-19 Exposure From 'Close Contact'
Tackling Dangerous Drug Shortages
October 22, 2020MSN
Tackling Dangerous Drug Shortages
What Can You Drink While Intermittent Fasting?
October 22, 2020MSN
What Can You Drink While Intermittent Fasting?
5 science-backed benefits of fasting, and how to fast safely and effectively
October 22, 2020MSN
5 science-backed benefits of fasting, and how to fast safely and effectively
7 evidence-based benefits of spirulina that prove why you should add this microalgae to your diet
October 22, 2020MSN
7 evidence-based benefits of spirulina that prove why you should add this microalgae to your diet
'All You Want Is to Be Believed': The Impacts of Unconscious Bias in Health Care
October 22, 2020MSN
'All You Want Is to Be Believed': The Impacts of Unconscious Bias in Health Care
5 Food Shortages You Should Prepare For
October 22, 2020MSN
5 Food Shortages You Should Prepare For