Magnesium Threonate for Sleep
Take 200mg elemental magnesium as L-threonate before bed. This form uniquely crosses the blood-brain barrier, supporting GABA activity and sleep depth.
- Time
- 2 min/day
- Cost
- $20-50
- Equipment
- None required
- Min. Trial
- 2-4 weeks
Dosage & Timing
- Duration
- 5 min
- Frequency
- Nightly
- Best Time
- evening
Evidence Strength
3/5 — ModerateModerate evidence. Magnesium's role in GABA modulation is well established. L-threonate specifically has limited but promising clinical data for sleep.
Overview
Supplement with magnesium L-threonate (Magtein) 30-60 minutes before bed. This form of magnesium crosses the blood-brain barrier and has been shown to support sleep quality, calmness, and next-day cognitive function.
Wellness education and routine support only. Review the evidence, caveats, and interactions before trying this protocol, and ask a clinician when medical conditions, pregnancy, medications, or symptoms are involved.
How To Do It
- 1
Choose the right form
Look for magnesium L-threonate (branded as Magtein). Typical dose: 144mg elemental Mg (usually 2 capsules of ~2g threonate salt).
- 2
Take before bed
Take 30-60 minutes before your target sleep time.
- 3
Be consistent
Effects build over days to weeks. Don't expect dramatic results on night one.
The Evidence
Each claim is linked to its source study. Confidence reflects the study design — systematic reviews and RCTs rank highest.
The effect of magnesium supplementation on primary insomnia in elderly
Magnesium supplementation improved insomnia severity and sleep efficiency in older adults.
Source Context
Primary references behind the protocol summary.
Who Popularized This
Creator references are context only. LiveWell weighs evidence, safety notes, and routine fit separately from who discussed a protocol.
Interactions & Warnings
Review 2 contraindications and 2 interaction notes before adding this protocol to a routine.
Contraindications
- Kidney disease
- Already taking high-dose magnesium
Interactions
- May enhance effects of sleep medications
- Take separately from calcium supplements
What To Track
These are review prompts for your own routine notes, not expected improvements or medical outcome targets.
Routine actions change your saved plan after sign-in. The protocol guidance above remains wellness education, not a personalized recommendation or expected outcome.
Saved-plan controls for this protocol
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Dim lights and avoid screens 2-3 hours before bed to protect melatonin production. Use warm/amber lighting and blue-light blocking glasses if screen use is unavoidable.
Sleep Hygiene Checklist
The complete sleep environment and behavior checklist. Combine darkness, cool temperature, consistency, and a wind-down routine for best results.
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