Supplements
Magnesium glycinate (the category, not one brand)
One of the few daily supplements that actually earns its place — if you buy the right form
Magnesium glycinate is the rare wellness category we recommend — *if* you buy the right form, the right dose, and use it for the right reason. Most adults in modern food environments are functionally low in magnesium, and glycinate (chelated to glycine) is one of the most absorbable, sleep-supportive forms available.
What it claims
- Sleep support, muscle relaxation, stress regulation
What the label is not telling you
- Magnesium oxide (the cheap form found in most supermarket bottles) is poorly absorbed and mostly produces a bowel effect — not the form you want
- Glycinate, threonate and citrate are well absorbed; oxide and sulfate are not
- Quality varies enormously — a third-party tested brand at 200–400mg/day is the floor
Effect on the nervous system
Genuinely parasympathetic. Magnesium is a cofactor in over 300 enzymatic reactions, including those involved in GABA signalling, sleep architecture and muscle relaxation. Taken in the evening, it measurably supports the body's transition into rest.
Who it might suit
Most adults, especially those with poor sleep, muscle tension, restless legs, or heavy training loads.
Who should skip it
People on certain medications (some heart medications, some antibiotics) — check with a clinician. Severe kidney disease.
Bottom line
One of the few supplements worth a daily place on the shelf. Buy glycinate, third-party tested, 200–400mg in the evening. Pair it with the evening anchor stack. Verified magnesium picks at thecodex.world.