OnePin Peptide Library · Sleep
Magnesium Glycinate
Magnesium Bisglycinate
Magnesium glycinate (also called magnesium bisglycinate) is magnesium bonded to two glycine molecules via chelation. This chelated form is widely considered the best-tolerated and most bioavailable oral magnesium supplement, with minimal laxative effect compared to cheaper forms like magnesium oxide or citrate. Magnesium is the fourth most abundant mineral in the body and is required as a cofactor for >300 enzymatic reactions including ATP synthesis, DNA replication, protein synthesis, muscle contraction, and nervous system function.,Magnesium deficiency is extraordinarily common - the NHANES survey suggests ~50% of Americans consume below the RDA, and functional deficiency (low intracellular magnesium with normal serum levels) is even more widespread. Modern agriculture has depleted soil magnesium, processed foods are stripped of magnesium, and stress, alcohol, caffeine, and medications (PPIs, diuretics) further deplete body stores. Symptoms of magnesium insufficiency include muscle cramps, poor sleep, anxiety, heart palpitations, high blood pressure, migraines, and constipation.,The glycinate form offers the added benefit of glycine - itself a calming amino acid neurotransmitter that supports sleep, GABA function, and collagen synthesis. This makes magnesium glycinate particularly well-suited for sleep, anxiety, and HRV support. It is the go-to form for evening dosing, cardiac support, and anyone who has had GI issues with other magnesium forms.
Best taken in the evening 30-60 minutes before bed for sleep support. Can be split to AM + PM if higher doses needed. Take with or without food - glycinate is well-tolerated either way.
Start here. Every protocol below is ordered lowest-first. Begin at the smallest effective dose, hold about a week to assess tolerance, and step up only if needed.
How it works
Magnesium is a cofactor for over 300 enzymes, including all enzymes that use or produce ATP (since ATP requires Mg binding to be biologically active). It is essential for oxidative phosphorylation, glycolysis, protein and nucleic acid synthesis, and second messenger signaling (cAMP, cGMP).,In the nervous system, magnesium functions as a voltage-dependent blocker of the NMDA glutamate receptor, limiting excitatory neurotransmission. This calming effect is why magnesium deficiency presents with anxiety, hyperreactivity, and poor sleep. Magnesium also enhances GABA receptor function, supporting inhibitory neurotransmission.,In the cardiovascular system, magnesium acts as a natural calcium channel blocker, promoting vasodilation, reducing vascular resistance, and stabilizing cardiac rhythm. It improves endothelial function and modulates inflammatory signaling. Magnesium deficiency is associated with arrhythmias, hypertension, and increased cardiovascular risk.,The glycinate carrier enhances absorption via the amino acid transport pathway (dipeptide transporters) rather than competing with other divalent cations (calcium, zinc) at magnesium-specific transporters. This bypasses the saturable, often-limiting mineral absorption pathway and achieves better bioavailability. Glycine itself contributes calming effects via inhibitory glycine receptors in the spinal cord and brainstem.
Magnesium is a cofactor for over 300 enzymes, including all enzymes that use or produce ATP (since ATP requires Mg binding to be biologically active). It is essential for oxidative phosphorylation, glycolysis, protein and nucleic acid synthesis, and second messenger signaling (cAMP, cGMP).,In the nervous system, magnesium functions as a voltage-dependent blocker of the NMDA glutamate receptor, limiting excitatory neurotransmission. This calming effect is why magnesium deficiency presents with anxiety, hyperreactivity, and poor sleep. Magnesium also enhances GABA receptor function, supporting inhibitory neurotransmission.,In the cardiovascular system, magnesium acts as a natural calcium channel blocker, promoting vasodilation, reducing vascular resistance, and stabilizing cardiac rhythm. It improves endothelial function and modulates inflammatory signaling. Magnesium deficiency is associated with arrhythmias, hypertension, and increased cardiovascular risk.,The glycinate carrier enhances absorption via the amino acid transport pathway (dipeptide transporters) rather than competing with other divalent cations (calcium, zinc) at magnesium-specific transporters. This bypasses the saturable, often-limiting mineral absorption pathway and achieves better bioavailability. Glycine itself contributes calming effects via inhibitory glycine receptors in the spinal cord and brainstem.
What to expect
Nights 1-7: Sleep quality improvement, muscle relaxation.
Evidence
Interactions & stacking
What's safe to combine, and what belongs in a separate pin.
Safe & synergistic
Keep separate
Pharmacokinetics
Storage. Store at room temperature (20-25C) in a cool, dry place. Keep container tightly closed to prevent moisture absorption (magnesium salts are hygroscopic). Capsules shelf-stable 2+ years.
Regulatory status
Classified as a dietary supplement in the US. No prescription required. Widely available. IV magnesium is used in hospitals for eclampsia, severe asthma, and arrhythmias.
Put it to work
Calculate, log & track
Open Magnesium Glycinate straight into OnePin with your vial and dose pre-filled, then let it handle the syringe math and remind you before the vial runs out.
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The guide & community
The complete Magnesium Glycinate walkthrough, real protocol discussion and coaching live inside the BlessUp community on Skool.
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