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Open Community Question @SlowTitrate_OR • 30-44F • 140 mg elemental Mg + 200 mg • Week 2

▲ 24 Helpful • 2 Peer Replies

Evidence Desk Prompt • Evening magnesium plus L-theanine: what timing and doses are you using?

We want to compare practical routines. Published trials use L-theanine at about 200 mg/day (a 4-week Japanese trial reported modest sleep-quality gains in healthy adults). Magnesium doses vary widely, and an insomnia trial in older adults used 500 mg elemental magnesium as oxide. Please share these details, and add your own context if you like: 1) elemental magnesium dose and form, 2) L-theanine dose, 3) minutes before bed, 4) with or without food, 5) any GI effects, 6) whether you also take melatonin, trazodone, zolpidem, or hydroxyzine. Please don't change prescription doses based on this thread. Report a sleep-latency estimate in minutes at baseline versus week 2 if you track it.

⚕ Pinned FDA / NIH / PubMed Clinical Context • Karim El-Sayed — Literature & Label Auditor

A 2019 PubMed-indexed trial (Hidese et al.) used L-theanine 200 mg/day for 4 weeks, with modest gains in sleep-quality scores. Sedative prescriptions such as zolpidem and trazodone carry label warnings for additive CNS depression, so check with a pharmacist before stacking.

Connected Clinical Guides: Condition: Insomnia Condition: Generalized Anxiety Disorder Condition: Migraine Rx: Zolpidem Rx: Trazodone Rx: Sertraline Supplement: Magnesium Glycinate Supplement: Magnesium Glycinate Chelated Complexes Supplement: L-Theanine

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Verified Peer Replies (2)

@DriftlessAngler_WI • Age 45-59 • Week 8

I take 140 mg elemental Mg bisglycinate and 200 mg L-theanine about 60 minutes before bed with a small snack. My sleep-onset estimate went from about 45 minutes to about 30 over 2 weeks. I take no prescription sleep aids.

@SteadyGlucose52 • Age 60+ • Week 12

I take 100 mg elemental Mg with dinner and 100 mg theanine at bedtime. I take no sedatives, but I asked my pharmacist first because I use propranolol. She saw no major interaction but told me to watch for dizziness when I stand up.