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Hannah Diaz's avatar

Ok folks, don’t throw out your magnesium supplements quite yet.

Yes, it is good to question supplements, and it is true that many influencers exaggerate benefits. It is also true that magnesium is often over-marketed. But the author is basing her entire argument on a fundamental misunderstanding that leads to conclusions that do not line up with basic biology or chemistry.

1. Magnesium absolutely exists in nature in a form living organisms can use.

Plants cannot survive without magnesium. It is the central atom in chlorophyll. No magnesium means no photosynthesis, which means no plants and no oxygen. That alone tells us magnesium exists in a natural, bioavailable form.

2. The author is mixing up two completely different substances.

Elemental magnesium metal (the reactive metal that burns) is not the form found in soil, food, or the human body. All living systems use ionic magnesium, Mg²⁺, which is stable, safe, and present in seawater, groundwater, and plant tissue.

She is confusing:

Elemental magnesium metal (Mg⁰)

• Silver-gray metal

• Highly reactive

• Burns in air

• Never occurs freely in soil

• Not something you can eat

WITH

Ionic magnesium (Mg²⁺)

• Found in seawater, soil, plants, food, and your bloodstream

• Stable and non-reactive

• Not a chunk of metal

• Used by all living organisms

These two forms only share a name. They behave nothing alike. Treating them as the same substance leads to an incorrect narrative.

3. Many magnesium compounds exist naturally.

Examples include magnesium malate in apples, magnesium citrate in citrus fruits, magnesium sulfate in mineral springs, and magnesium chloride in seawater. These are natural. Supplements simply mimic these forms because they are already part of biological systems.

Her description of supplement manufacturing is also misleading. Yes, supplements are created by binding magnesium to acids or amino acids. But plants do this too. They bind magnesium to citric acid, malic acid, and amino acids like glycine. The industrial process is simply replicating natural biochemistry.

4. Magnesium is essential for human biology.

It regulates more than 300 processes, including muscle relaxation, nerve signaling, ATP production, DNA stability, and electrolyte balance. Life on earth is not possible without magnesium. This is basic cell biology.

5. Relief is not addiction, and returning symptoms are not proof of deception.

Stress, caffeine, alcohol, poor sleep, chronic inflammation, and many modern dietary patterns deplete magnesium. Feeling better when taking magnesium and worse when stopping does not mean dependence. It simply means your mineral levels changed, in the same way you get thirsty again after drinking water.

6. Soil depletion is real but does not mean magnesium was never present.

Modern agriculture often removes minerals faster than they are replaced. This is a farming issue, not proof that magnesium was not part of the human diet. The fact that so many plant foods naturally contain magnesium makes this claim one of the strangest parts of the article.

7. Should everyone supplement magnesium?

Not necessarily. Some people get enough through food, especially if they eat greens, nuts, seeds, legumes, and mineral-rich produce. Others benefit from additional intake if they are stressed, athletic, or low in dietary sources.

Magnesium glycinate feels calming partly because glycine itself is calming, which is an easy nuance to miss.

The point is not that everyone must take magnesium. The point is that the biological claims in the article do not match what we know about soil, plants, water, and human cells.

If you feel better without magnesium, that is completely valid.

If you feel better with it, that is also valid.

But stopping because “magnesium does not exist in nature” is a decision based on a misunderstanding of very basic science.

A more balanced takeaway is this: magnesium is real, natural, and essential but Supplement needs vary from person to person, and no mineral can replace the deeper work of lowering stress, nourishing the body, and supporting the nervous system.

Robert Townshend's avatar

I'm so interested in alternative medicine that I love this site for its alternative view of alternative medicine. And if anyone has an alternative view of that alternative view of alter...you know the rest. I like bloody alternatives!

I have magnesium salts and the like about the house and I won't be throwing them out, no more than I'll throw out the DMSO or the emu oil. But I won't be reaching for them any time soon, unless it's to fiddle a bit with a new experiment on my own body.

I love hearing from MG about her doubts and reservations on these substances. I'm not going to shriek "how dare you!" because someone has taken the trouble to describe, in solid detail, the possible downsides. Moreover, I'm more than a touch suspicious of the alternative industry and its internet stars.

Ever notice how they praise a food for having a tiny percentage of daily requirement of some essential mineral or vitamin? To get the full requirement of magnesium, for example, I'd have to do some pretty bizarre eating. So what are they up to? Is it part of the supplement selling game?

Anyway, I just ate a bowl of steaming brown rice with parsley pesto for breakfast. Doctor Tummy and Doctor Palate didn't explain why. They simply told me to just do it. (Sometimes they sound like a Nike commercial, but they're nearly always right.)

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