Yes, Magnesium! And here’s Why and How
September 23, 2025 | 86 Comments | SAFM Team
Tightness, tension, spasm… Throughout the body, these symptoms are often a sign of insufficient magnesium. Magnesium functions as a bit of a “master” electrolyte in this case because it directly controls the pump that allows potassium to flow into the cell (where benefits can actually be experienced). Especially because it is increasingly less prevalent in farm soil, dietary magnesium insufficiency is common.
All of your patients potentially have insufficient levels of magnesium. Be a detective; look for those symptoms! Look for the interconnectedness you can see. Functional medicine pioneer Dr. Mark Hyman has published an excellent blog article about the symptoms of magnesium deficiency which you may read here . Because it is generally a safe supplement to explore*, consider prioritizing this topic with patients who may gain rapid relief from magnesium support.
While anyone you work with should be considered for this opportunity, there are three (big!) groups of patients who are more likely to struggle with insufficient magnesium. That is, those who:
- Have Type 2 Diabetes (or are on the spectrum of developing it e.g. prediabetes, insulin resistance, abdominal obesity). These clients are statistically more likely to have magnesium deficiency – and not suprisingly there is an epigenetic component of this deficiency as well (this other article is a great summary of similar research). The hormone insulin mediates healthy functioning of both sugar and magnesium uptake into cells, so insulin resistance can impair both of these. Fasting insulin – or even better C peptide – is perhaps the best lab marker (of those that are readily available) for assessing insulin resistance in its early stages – that is before there is any increase in fasting glucose. In fact, in the worsening progression of insulin resistance, it is more likely that a patient will first experience a period of inappropriately low blood sugar given their diet as a result of increasingly higher levels of fasting insulin (before pancreatic dysfunction progresses to drive blood sugar upward).
- Regularly take Proton Pump Inhibitor medications (e.g. Protonix, Prilosec, Nexium), usually prescribed for acid reflux. The FDA’s warning about this connection might be inspiring to your clients to make lifestyle change to get away from needing these drugs. By purposefully creating hypochlorhydria (reducing stomach acid), this drug impairs our ability to separate minerals which are typically food-bound to amino acids in proteins. Other posts on our site here give pearls about addressing the root causes of chronic acid reflux.
- Use diuretic medications, especially for hypertension. These drugs promote urination, typically to increase water and sodium elimination and reduce the edema caused by other hypertension drugs (e.g. beta blockers). However, these drugs also cause loss of other electrolytes via the increased urination. Ironically enough, this includes potassium and magnesium, two minerals which are vital to maintaining healthy blood pressure in the first place.
If your clients wish to have their physician assess their actual magnesium level, encourage them to request “RBC magnesium” and specifically to be sure that the (standard default) “serum magnesium” is not measured instead, wherever possible. RBC mineral levels are not a perfect measure, but they do offer a more accurate reflection both of ongoing intake in the typical diet (2-3 months in RBCs vs. feedback on only a day or two in the serum level) and also one’s cellular absorption of the nutrient. Remember it’s not enough to get nutrients into the bloodstream; we need to be able to absorb them well into our cells in order to make a difference in our functioning.
There are many different forms of magnesium available on the market. Avoid the carbonate form, as it is poorly absorbed at the typical pH of human digestive processes (but inexpensive and commonly available). Instead…
- Specifically for constipation, consider magnesium citrate. Start with 200-400mg taken with dinner to help with early AM bowel movement the next day. It may take a few days to build up full efficacy. And clients may need appreciably more. Both capsule and loose powder options are available.
- For muscular spasm, tension, tightness, including headache, consider magnesium glycinate or malate. These chelate forms of magnesium typically do not affect the GI tract much and won’t overly-stimulate an already-healthy bowel movement habit.
- For attention deficit, anxiety, panic, and those who are easily startled, consider magnesium threonate as it penetrates the blood-brain barrier particularly well and provides threonine, an amino acid particularly calming to the nervous system (e.g. Jarrow’s “MagMind”). Consider beginning with ~150mg magnesium in this form and build up as needed (start dosage to target key needs e.g. first morning for daytime anxiety and evening for RLS, trouble going to sleep, or ruminating thoughts that prevent deep sleep).
- For cardiovascular disease and related concerns (e.g. atrial fibrillation), consider magnesium taurate. The amino acid chelate in this case (taurine) functions as a calming neurotransmitter and a critical building block for optimal bile production in the liver, and it has been shown to be effective in countering a variety of arrhythmias (especially when combined with citrulline).
*Magnesium supplementation should be done cautiously in those with kidney dysfunction or disease and always in active partnership with the attending physician for the kidney ailments. Supplementation may still be warranted but in small doses at once that are actively monitored to ensure filtration function is not harmed.
Get savvy about working with magnesium! It can be a simple and powerful tool to help your clients and patients to find the Rapid Relief that will help them to stay engaged and enthusiastic about their journey with you.
Thank you for the opportunity to support you!

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Can Magnesium cause drowsiness? I’ve had a client mention that they can only take Mg at bedtime if they know they can get more than 6 hours of sleep. If they take Mg and get less than 6hrs of sleep, it’s hard to wake up in the morning. But without Mg, waking up after 6hrs of sleep is not an issue. I know there’s some sleep hygiene work to be done here to consistently get 7-8 hours of sleep so we are working on that as well.