Magnesium
Reads: Magnesium status
ATP does not work as ATP — it works as Mg-ATP. That single fact puts magnesium behind every kinase, every synthetase and the whole of energy metabolism. Serum magnesium is a poor status marker because the great majority is intracellular and in bone, which is why deficiency is both common and easily missed.
What this marker reads
A cofactor for over three hundred enzymes, including every reaction that handles ATP. Serum levels are a poor guide — less than 1% of body magnesium is in blood, so a normal result does not exclude depletion.
What a named body publishes
Each line below is the sentence the issuing body wrote, carried with its own identifier. Nothing here interprets your result — it states what was published, for whom, and by whom.
Serum magnesium
“The fact sheet states: "Normal serum magnesium concentrations range between 0.75 and 0.95 millimoles/liter (mmol/L)."”
Magnesium — Health Professional Fact Sheet · NIH Office of Dietary Supplements — updated 6 January 2026 The document
“The fact sheet states: "Hypomagnesemia is defined as a serum magnesium level less than 0.75 mmol/L."”
Magnesium — Health Professional Fact Sheet · NIH Office of Dietary Supplements — updated 6 January 2026 The document
Your laboratory reads your result against its own assay, and this page does not do that for it. What is above is what a named body published and for whom; the machinery this marker reads is set out on its pathway page, and the formulas witnessed on it are below.
The machinery behind it
What raises this marker and what it goes on to move — each edge carried with its own study — is set out in full on its pathway page: Magnesium status →
Formulas that modulate it
Each formula page names this pathway and carries the study behind its claim.
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