Magnesium

Mechanism of Action

Magnesium acts as a universal gatekeeper of cellular metabolism. It binds to ATP to form the Mg-ATP complex, the only form of energy directly usable by enzymes. Without this bond, the cell has fuel but cannot use it.

This mineral also stabilises the DNA double helix and supports the systems that correct copying errors at each cell division. It regulates calcium flow through cell membranes. This mechanism is central to muscle contraction and nerve signal transmission. When intracellular magnesium drops, excess calcium floods into cells, promoting neuromuscular overexcitation.

In the laboratory, magnesium is also the cofactor of the insulin receptor tyrosine kinase, the enzyme that triggers this hormone's signalling cascade. It is one of the many enzyme systems whose activity depends on it.

Key Benefits

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  Magnesium contributes to a reduction of tiredness and fatigue.

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  Magnesium contributes to normal functioning of the nervous system. It regulates calcium and potassium flow across neuronal membranes, a mechanism central to nerve signal transmission.

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  Magnesium contributes to normal muscle function. It modulates muscle contraction and relaxation by balancing intracellular calcium flow.

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  Magnesium contributes to normal energy-yielding metabolism by forming the Mg-ATP complex, the active form of cellular energy usable by enzymes.

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  Magnesium contributes to normal psychological function.

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  Magnesium contributes to the maintenance of normal bones. It plays a role in vitamin D metabolism and bone mineralisation.

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  Magnesium contributes to the maintenance of normal teeth. Teeth share with bone the same mineralised matrix, in which magnesium accompanies calcium.

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  Magnesium contributes to normal protein synthesis. The enzymes that assemble amino acids into proteins work with the Mg-ATP complex.

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  Magnesium has a role in the process of cell division. It stabilises the DNA double helix and works alongside the enzymes that copy it.

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  Magnesium contributes to electrolyte balance. It ranks among the most abundant cations inside the cell, alongside potassium.

Dosage & Forms

Several magnesium forms exist on the market, with very different absorption and tolerance profiles. Magnesium oxide, the most common form, was measured at approximately 4% fractional absorption in a comparison of commercial preparations, and its laxative effect is marked. Citrate offers good absorption but retains an osmotic effect that limits tolerable doses. L-threonate crosses the blood-brain barrier (the filter protecting the brain) and preferentially targets brain tissue. Taurate pairs magnesium with taurine, a sulfur amino acid.

Magnesium bisglycinate is a well-absorbed organic form, markedly better than oxide. A fraction of the complex appears to be absorbed intact, through a peptide transport pathway. The anhydrous form concentrates more elemental magnesium per gram. Singular selects this form for its digestive tolerance: it does not produce the accelerated transit observed with oxide and citrate. The base dosage is calibrated in mg of elemental magnesium and adjusted according to individual biological profile.

In the Singular Formula

Safety & Precautions

Oral magnesium is one of the best-tolerated minerals at nutritional doses. The upper safety limit set by European authorities is 250 mg/day of elemental magnesium from supplements, in addition to dietary intake. Beyond this threshold, an osmotic laxative effect may occur, particularly with inorganic forms (oxide, hydroxide). The chelated bisglycinate form is better tolerated in this respect.

When the health profile reports impaired kidney function, magnesium is excluded from the formula. This precautionary rule applies regardless of the reported degree. The kidneys are the primary regulator of magnesium excretion. People taking cardiac medication or antibiotics (tetracyclines, fluoroquinolones) should space magnesium intake by at least two hours. The same precaution applies to bisphosphonates to avoid absorption interactions. Pregnant or breastfeeding women may consume magnesium at nutritional doses after consulting a healthcare professional.

Scientific Studies

Frequently Asked Questions