Alkaline Water Myths vs Facts: An Honest Look at the Evidence
Kamal, Founder of BelieveUpdated 13 Jan 20268 min read
Quick answer
Alkaline water does not change your blood pH: your body keeps blood tightly between pH 7.35 and 7.45 no matter what you drink. It does not cure diseases, and anyone claiming that is overselling. What is reasonable to say: many people find it smoother to drink and so drink more water; ionized water contains dissolved hydrogen and has a negative ORP; and research into specific benefits is ongoing but still limited. Enjoy it as better daily water, not as medicine.
Myth 1: “Alkaline water makes your body alkaline”
Fact: your stomach is strongly acidic, and your lungs and kidneys keep blood pH in a narrow range of 7.35–7.45 all the time. What you drink does not meaningfully change that. Urine pH can change with diet, but that is your kidneys doing their job.
Myth 2: “Alkaline water cures acidity and disease”
Fact: no drinking water cures disease. One often-quoted laboratory study found that water at pH 8.8 could inactivate pepsin, a digestive enzyme involved in reflux, in a test tube. That is interesting, but it is not proof of a treatment. If you have frequent acidity or reflux, see a doctor.
Myth 3: “All alkaline water is the same”
Fact: water made alkaline by added minerals or baking soda has a higher pH, but no dissolved hydrogen and no meaningful change in ORP. Freshly ionized water from electrolysis has all three. Bottled “alkaline” water loses any hydrogen long before you open it.
What is reasonable to say
| Claim | Verdict |
|---|---|
| Changes blood pH | False |
| Cures acidity, diabetes or cancer | False: no evidence |
| Has a higher pH than RO water | True, measurable |
| Ionized water contains dissolved hydrogen | True, measurable in ppb |
| Has a negative ORP when fresh | True, measurable in mV |
| Many people find it smoother and drink more | Commonly reported |
| Hydrogen water has proven health benefits | Under research: small studies, not conclusive |
Why we tell you this
“Our promise is transparency: we show you the pH, ORP and hydrogen on your own water, and we never claim it is medicine.” — Kamal, Founder of Believe
Key takeaways
- Blood pH is tightly regulated by your lungs and kidneys; drinking water won’t shift it.
- Be wary of any brand claiming alkaline water cures disease.
- Taste and convenience are real, everyday benefits.
- Research on alkaline and hydrogen water exists but is mostly small studies.
Frequently asked questions
Is alkaline water safe to drink every day?
For healthy people, drinking moderately alkaline water (around pH 8.5–9.5) daily is generally considered safe. People with kidney disease or on medication that affects electrolytes should ask their doctor.
Should I stop my acidity medicine?
No. Never change or stop medication without your doctor’s advice.
