Pure Encapsulations Magnesium (Glycinate)

Magnesium is involved in over 300 enzymatic reactions in your body — from muscle contraction and energy production to sleep quality and nerve function. It's also one of the first minerals you lose through sweat during training.

Studies suggest that a significant percentage of athletes are deficient, and that deficiency quietly sabotages recovery, sleep, and the very metabolic pathways that turn your food into fuel.

That's huge.

Pure Encapsulations Magnesium (Glycinate) delivers 120mg of highly bioavailable chelated magnesium per capsule in the form your body absorbs best — without the GI distress that cheaper forms are known for.

Why This Magnesium

Chelated for Superior Absorption – Magnesium glycinate bonds magnesium to the amino acid glycine, creating a chelated form that your intestinal walls absorb more efficiently than oxide, citrate, or carbonate forms. This means more magnesium actually reaches your cells rather than passing through your system. Glycine itself also supports a calming effect on the nervous system, adding a secondary benefit.

Gentle on Your Stomach – This is the critical differentiator for athletes. Magnesium oxide and citrate are well-known for causing loose stools and GI distress — the last thing you need during a training block. Glycinate is significantly less likely to cause digestive issues, making it a form you can take daily without worrying about stomach problems during your next run or ride.

Broad-Spectrum Support – Magnesium drives neuromuscular contraction, cardiac function, and acid-alkaline balance. It's essential for metabolizing carbohydrates, amino acids, and fats into usable energy. It supports the utilization of calcium, phosphorus, sodium, and potassium — the same electrolytes you're replacing during and after training. And it promotes healthy bone metabolism, cardiovascular function, and the calm, relaxed state that leads to better sleep.

A cross-sectional study involving 210 elderly individuals found that optimal magnesium intake was associated with positive mood, healthy lipid metabolism, and lean body mass. Meta-analyses of randomized trials support magnesium's role in healthy cardiovascular and blood pressure function.

How to Use Magnesium (Glycinate)

Daily Dose: Take 1–4 capsules daily with food, based on your individual needs. Each capsule provides 120mg of elemental magnesium.

Timing for Athletes: Evening dosing supports relaxation and sleep quality. Athletes who cramp during training may benefit from splitting the dose — one capsule with dinner, one before bed.

Pro Tip: Most athletes benefit from 200–400mg of elemental magnesium daily. If you're already getting magnesium from food sources and other supplements, adjust your capsule count accordingly.

This is the magnesium form that practitioners recommend most for athletes — high absorption, zero GI issues, and broad-spectrum support from recovery to sleep.