The Mystery of Understanding Magnesium

To talk about Magnesium is like describing gold. It has so many attributes, conflicts, benefits, confusions, and misunderstandings. Part of that is due to recognizing that Magnesium comes in MANY different forms. Each form has a different “persona,” use, ability, talent, and side effects. Most everything I’m sharing is what I have “gleaned” from research (primarily on the internet-as well as reading copious labels). I’ve provided some links for all of you to read at length and come to your own conclusions.

Most of us first came into contact with magnesium as a child, through being given Milk of Magnesia, (aka Magnesium Hydroxide). This is a laxative that most of us grew up with. Key magnesium component is Magnesium Oxide, which will be described below for its laxative affects.

I’ve concluded that for me, I prefer to use two different forms of Magnesium. Magnesium Chloride (the most absorbable, water-soluble bio-available form of Magnesium-50%) up to three times a day. It is available in 520 mg tablet as well as a liquid for those desiring this delivery system. This is to supply my physical and neurological needs for more magnesium. There is no laxative affect with this form (Magnesium Chloride).

When I want to have a laxative affect, I use Magnesium Oxide (least bio-available-4%) which is why it becomes a laxative and your body tries to get rid of it.

According to my research, you cannot get both effects (nutritional and laxative effect) from one form of Magnesium. See notes in red in the articles below. You can decide what works best for you.


See references taken from these articles below:

Home / Library / Magnesium / The Magnesium Miracle – by Dr. Carolyn Dean M.D., N.D.


“Magnesium oxide, the least expensive form, is only 4% absorbed. The rest goes through the intestines, making it a great laxative. Magnesium citrate is the most commonly used form. Magnesium glycinate, magnesium taurate, magnesium malate, and dimagnesium malate are used because they have less laxative effect. Magnesium oil is comprised of about 35% magnesium chloride balanced with sea water and naturally occurring trace minerals. Though there is no actual oil in it, the combination creates a glycerin feel and is in a form that can be sprayed on the body. {Magnesium Chloride} is used by those who want no laxative effect whatsoever. The laxative effect of magnesium, however, is your guide to how much to take. Anything above the amount needed by the body will be eliminated through the bowels, kidneys, or through sweat.”

Magnesium Supplementation

Magnesium chloride has been found to have the highest bioavailability of the above types of magnesium, due to its superior solubility in water. In fact, water solubility has been found to be directly related to supplement absorbability, as it is believed that the “non-saturable” component of magnesium absorption in the digestive system is related to “solvent drag”, the mechanism by which minerals and electrolytes accompany solvents such as water in the process of digestion and absorption.2

Magnesium oxide is a common compound in the earth’s crust, comprising 35% of its content by mass. However, it has been found in medical studies to have one of the lowest degrees of bioavailability, as low as 4% bioavailable in one study. Therefore, most experts do not recommend magnesium oxide as the magnesium supplement of choice. Magnesium oxide is used in most store -bought brands of magnesium supplements due to its low cost.

  • More to Consider: 

Please note in this next article at the end of the 5th paragraph, they name Magnesium Chloride  and it’s the only specific magnesium named in this entire story. How many of these symptoms might apply to you or someone you love?

“Why 80% of Us Are Deficient In Magnesium | MyScienceAcademy 


Continuing to research for my own health and that of others,

By Sandra Lemire ©

August 29, 2015


These Blogs are offered as the personal opinions, experiences and views of Sandra Turner Lemire with the addition of certain “links” gleaned from the internet and willing contributors. There is no presumption of expertise by any of these, and all readers are advised to rely on their own research and team of advisers for any decisions or actions on their own behalf. Remember that information is always in flux, especially from the Internet and links.