PlainPill
SupplementSleepAnxiety

Magnesium Lactate

The short answer. There isn't much data on Magnesium Lactate yet — 7 mentions, 3 with a clear outcome — so treat these numbers as anecdotal. There is a moderate body of research — 1 meta-analyses and 8 trials.

Compare with…Alternatives for sleep
What users report
67%helped3 reports · few reports
2 helped1 mixed0 didn't help

From 7 mentions in total — the rest didn't say how it went and aren't counted.

Clinical research
BModerate research base
1
meta-analyses
8
RCTs
52
papers

What Magnesium Lactate does, according to users

Of the people who reported each effect, the share who said it got better.

Sleep100% of 1Anxiety100% of 1
betterno changeworse

What the research says

Systematic reviews and meta-analyses from PubMed, with their published conclusions.

BModerate research base

At least one meta-analysis, or 5+ randomized controlled trials. The grade measures how much human research exists — read the conclusions below for what it found.

Cochrane Database Syst Rev · 2002 · Meta-analysis / systematic review
Interventions for leg cramps in pregnancy

Conclusion: The evidence that calcium reduces cramp is weak and seems to depend on placebo effect. The evidence for sodium chloride is stronger but the results of the sodium chloride trial may no longer be relevant because of dietary changes which include an increased sodium intake in the general population. It is not possible to recommend multivitamins with mineral supplementation, as it is not clear which ingredient, if any, is helping. If a woman finds cramp troublesome in pregnancy, the best evidence is for magnesium lactate or citrate taken as 5mmol in the morning and 10mmol in the evening.

PubMed 11869565 ↗

Dosage people report

As stated by users — not a recommendation. Follow the label or your doctor.

1000 mgdaily
750 mgdaily

Reported side effects

How often each side effect came up across all reports.

No side effects reported so far.

What users say

First-hand experiences, quoted verbatim. We show one positive and one negative where both exist.

“helps my muscles relax. Also I sleep even better with magnesium.”
HelpedRead the discussion ↗
“magnesium carbonate, lactate, hydroxide. Made me dare to look strangers in the eyes once, then stopped working completely.”
MixedRead the discussion ↗
Top discussions (5)

Other options for sleep

Inositol
Supplement
100%better43 reports · medium confidence
AResearch: Strong
Lemon Balm
Supplement
92%better106 reports · high confidence
AResearch: Strong
Taurine
Supplement
92%better99 reports · medium confidence
AResearch: Strong
Magnesium
Supplement
88%better430 reports · high confidence
AResearch: Strong
Glycine
Supplement
87%better255 reports · high confidence
AResearch: Strong
Magnesium Taurate
Supplement
94%better36 reports · medium confidence
AResearch: Strong

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 3, 2026. How we rate