Skip to content


The Alkaline vs. Alkalinity Battle Rages

by Mark Timmons April 15, 2013 8 Comments
Maybe you have heard that alkaline water is good for you and you are convinced that you need to purchase a $4,000.00 Kangen Ionizer or maybe an Alkaline filter which some claim does the same as an ionizer. I am going to tell you "Not so fast - be careful of what you believe." There are lots of water ionizers on the market and they range from a few hundred dollars to several thousand dollars for the Kangen Ionizer. Kangen water typically produces water with a pH of 8.5 to 9.5 which they state "is slightly alkaline and can help restore your dehydrated body." That is truth, but I am going to suggest that raising the pH does not automatically raise the alkalinity. There is general agreement that an alkaline body is healthy and an acid body is disease-causing. Additionally, as a human being, everything you do (breathing, eating, exercising, etc.) creates metabolic acid and acids need to be neutralized to maintain a blood pH of 7.35 to 7.45. To alkalize your body means that you give the body the ability to maintain a proper pH, but in order to do that you need water with alkalinity not alkaline water. pH merely measures the degree of acidity or alkalinity, NOT THE CAPACITY TO NEUTRALIZE ACID. Measuring pH is like measuring temperature, but measuring Alkalinity is like measuring BTU's. A match is 451 degrees Fahrenheit but just 1 BTU, whereas a fireplace is 451 degrees Fahrenheit, but 50,000 BTU's. You don't buy a furnace based upon temperature, but rather, on BTU's. You also don't alkalize your body based upon pH, but rather on alkalinity. Alkalinity measures the ability to neutralize acid with buffers which are the sum of bicarbonates. Alkalinity is measured in mg/l (milligrams per liter). Alkaline mineral compounds include the following:
  • Calcium
  • Potassium
  • Magnesium
  • Sodium
  • Manganese
  • Iron
So, you need to add alkalinity to you body, but you need to realize that pH has no relation to that alkalinity. Case in point: spinach juice has a pH of 6.4 but alkalinity of 2250 mg/l. Wow! If you put a 1/2 teaspoon of baking soda into a glass of water, you would have 1500 mg/l of alkalinity. Compare that to one of the many alkaline filters on the market. Most add just a few mg/l of alkalinity (20-50) and then it only lasts a few gallons. There are also health benefits to drinking a limited amount of water with a negative ORP (oxidation reduction potential), which is something I shall discuss in a subsequent column. For the record, I take a 1/2 teaspoon of baking soda in 12 ounces of water in the morning (I don't eat for an hour so that my stomach acid can rebound), but you might want to consult a doctor before doing the same thing. I am not qualified to give you medical advice and neither are the people who sell ionizers or alkalizing filters. In the interim, you may want to read what one expert writes about alkaline water in Public Health Alert. Settle back and read this in-depth article by one of the most respected scientists in the field, Robert Slovak.

Prev Post
Next Post


November 20, 2013 Why is the TDS on my RO system so high? | Ask The Water Doctor

[…] You may want to read, a previous blog post I have written on Alkaline vs. Acid Water. […]

November 21, 2013 Reid

I think much of the confusion on this topic has to do with the lack of proper water descriptors. pH is measured on a scale of 1 to 14. pH of 1 is highly acidic while pH of 14 is highly basic. Yes, BASIC, not ALKALINE. Alkalinity is the ability of water (or anything else for that matter) to buffer to a basic pH (any value above 7). This can be confusing because things that are alkaline typically do have a pH that is basic, but not always.

November 21, 2013 Mark Timmons

Absolutely true. High pH does not mean high alkalinity.

January 04, 2017 adinarayana

Differnce of ph,tds,alkline water?
Use alkline water is safe?

January 04, 2017 Mark Timmons

Check out this blog post:

June 04, 2018 Dr. Diaz

Everything you said about the Kangen water is absolutely untrue which is why Kangen Water can provide true demonstrations (LIVE) whereas any other ionizers cannot provide any live demonstrations to prove their product. Also, not only do all ionizer “salesman” (non wellness coaches) compare themselves to Kangen (explain this) but you always bring up the companies most expensive machine, when if you really do your research, the lowest machine is around $1900 which is the lowest model that will out perform any of the highest grade imitator ionizers" out there on your product listing. I know its scary to get beat by a medical grade ionizer but don’t lie to the public.

Simply get a degree or educate yourself.


June 07, 2018 Mark Timmons

OK, rather than delete your post, I am going to give you an opportunity to explain how an ionizer works and the underlying science. Have at it, but may sure you are dealing with “facts” not fiction

December 08, 2018 Alkaline Water or Hydrogen Water — Which One Is Better for You?

[…] 24 Ask the Water Doctor, April 15, 2013 […]

Leave a comment

Please note, comments need to be approved before they are published.

Someone recently bought a
[time] ago, from [location]

Thanks for subscribing!

This email has been registered!

Shop the look

Choose Options

Edit Option
Back In Stock Notification
this is just a warning
Shopping Cart
0 items