Magnesium L-Threonate
People mainly take Magnesium L-Threonate for sleep, focus, anxiety. Based on 344 first-hand reports and 0 meta-analyses & systematic reviews in the medical literature. Ranked #18 of 1,974 overall.
Of reports that state an outcome, 77% are positive.
What Magnesium L-Threonate does, according to users
Of the people who reported each effect, the share who said it got better.
4 more with fewer than 3 reports
What the research says
Systematic reviews and meta-analyses from PubMed, with their published conclusions.
1–4 randomized controlled trials, no meta-analysis yet. The grade measures how much human research exists — read the conclusions below for what it found.
Dosage people report
As stated by users — not a recommendation. Follow the label or your doctor.
Reported side effects
How often each side effect came up across all reports.
What users say
Verbatim quotes, shortened only — each links to the original discussion.
“L-theanine and magnesium threonate permanently changed my anxiety”
“Magnesium L-Threonate”
“Tried taking 6 caps of threonate a day and ended up with cramps.”
“magnesium l-threonate 670mg, to start the day.”
“Creatine, Namenda, Agmatine, Theanine, Huperzine, Magnesium Threonate are all NMDA antagonists in some capacity.”
Top discussions (5)
- 40M. I biohacked my way from severe alcoholism, ed/pied, severe anxiety to washington monument sized boners every morning, and almost no anxiety. In less than 1.5 years. AMA. ↗
- 24M. Spent $350/month on supplements. Bloodwork showed half were actively hurting me. ↗
- Magnesium. Was it really That simple this WHOLE TIME!?!? ↗
- Magnesium fixed me, something I thought was impossible for 7 years. ↗
- Thoughts on my travel kit? ↗
Other options for sleep
User data from public discussions; research from PubMed. Information only, not medical advice — talk to a doctor before starting, stopping or combining anything. Data updated October 2, 2026. How we rate