How to Make Your Own Magnesium Bicarbonate Water

Glass of Magnesium Water

If for some reason I could only consume one nutritional health supplement, I would choose magnesium. I’ve learned that it’s the single most crucial mineral in my diet.

If you’d like to learn more about the importance of getting sufficient magnesium in your diet, I recommend The Magnesium Miracle (Second Edition) by Carolyn Dean M.D., N.D.

“Magnesium is a veritable workhorse among the minerals your body needs. You need it for muscle function, normal heart rhythm, blood glucose control, nerve function, to transport other minerals throughout the body, and for basic energy needs, according to the National Institutes of Health.”

Forms of Mag

I’ve tried many brands that include these types:

  • Magnesium Citrate
  • Magnesium Oxide
  • Magnesium Chloride
  • Magnesium Malate
  • Magnesium Taurate
  • Magnesium L-Threonate
  • Magnesium Sulfate
  • Magnesium Glycinate
  • Magnesium Orotate

Magnesium Bicarbonate

Over a number of years, I’ve built substantial trust in Dr. William Davis’ health advice. His “Does the form of magnesium matter?” video led me to a new type of magnesium:

Milk of Magnesia

Magnesium Carbonate can’t be sold as a commercial product because it has a short shelf life. That’s why I make my own.

I chose Rite Aid Pharmacy Milk of Magnesia. It’s clean (no unnecessary junk ingredients), very affordable, and I buy a case at a time to earn free shipping. It has only three ingredients:

  1. Magnesium hydroxide (1200 mg per tablespoon)
  2. Purified Water
  3. Sodium Hypochlorite

If Rite Aid is out of stock, here’s a backup product that’s made with the same ingredients > Sunmark Milk of Magnesia Original Flavor.

Carbonated Water

Aarke Premium Carbonator
Aarke Premium Carbonator

I got tired of contributing to the world’s plastic waste problem and purchased an Aarke Premium Carbonator.

It’s a beautiful, well-made device that works perfectly.

I always use purified water.

As the saying goes, “If you don’t use a water filter you are the water filter.” 🙂

Our favorite water filters are made by Aquasana.

When I make our magnesium water, I give each bottle three rounds of carbonation (see “Pro Tips” in the Aarke user guide).

Right after carbonating the water, I immediately pour in three tablespoons of milk of magnesia (premeasured in the included plastic cup), quickly put on the Aarke bottlecap, and vigorously shake for 30 seconds. I then let the bottle sit for 30 minutes (or so) and shake again for another 30 seconds.

It’s fine to refrigerate but I prefer room temperature.

Consult an Expert

I’m not a qualified health provider and cannot recommend any nutritional health supplements. You know, “First, do no harm.” So discuss your mag needs—and possible drug interactions and counterindications—with a health wizard who understands supplements in-depth.

Personal Dosage

Everyone’s body is unique. I drink as much mag water as I can tolerate.

When a person’s body can’t absorb any more magnesium, this essential mineral creates a laxative effect, which is a good time to lower the dose. Loose stools can cause dehydration and leach out minerals, which is the opposite of the desired outcome. It’s important to be careful.


I keep my magnesium consumption at least two hours away from eating any food or taking other supplements. Why? Well, one reason is that magnesium can interfere with carotenoid (e.g. beta-carotene) bioavailability.

I drink my mag water early in the morning as the last part of my intermittent fasting protocol. Some people prefer to drink their mag water at night since it can help to improve their sleep.

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  1. i also use a MOM with sodium hypochlorite in it. however ive read conflicting information about how this is bad and you should try and find a MOM without it…which has proven hard to find. now ive gone and drank litre upon litre of mag bicarb water and im pregnant and very concerned about the toxicity. im a big magnesium person and love the bioavailability, never had much lasting success with other forms of Magnesium. i would love to know your thoughts.

    1. Hi, Sarah. I’m not a qualified health practitioner so can’t provide medical advice. My current understanding is that sodium hypochlorite acts as both a preservative and mild bacteriacide; I’d love to find an authoritative answer if that’s fully accurate. I used to purchase Good Sense Milk of Magnesia but it hasn’t been available from Amazon for over a year. If you learn anything about alternative sources, please come back and provide an update.

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