Magnesium Glycinate 200mg (High-Absorption, Chelated)
A chelated magnesium glycinate formulated for evening use and gentle digestive tolerability. Positioned for sleep quality and nervous-system relaxation when dietary magnesium is inadequate.
Resar evidence panel
0–100 · cited research only
Evidence Score
77
Strong
Safety Score
76
Strong
Effectiveness Score
71
Good
Research Confidence
74
Strong
Product Fit Score
65
Good
Bottom line
Strong evidence (Strong) for sleep — worth a closer look if this fits your goals.
Individual results vary. Summaries are educational — not medical advice.
Evidence Score
77
Strong
Price
$34.95
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Compare others in SleepTop research
The strongest studies behind this product
Ranked by evidence hierarchy and how closely each study matches this product. Start with the strongest study, then read down. Every claim needs a trail.
Oral magnesium supplementation for insomnia in older adults: a Systematic Review & Meta-Analysis
Systematic Review · BMC Complementary Medicine and Therapies · 2021
What the research shows
Small improvements in sleep onset latency and total sleep time versus placebo, most relevant when baseline magnesium status is low.
The effect of magnesium supplementation on primary insomnia in elderly: A double-blind placebo-controlled clinical trial
Randomized Controlled Trial · Journal of Research in Medical Sciences · 2012 · n=46
Magnesium status and supplementation: bioavailability of magnesium salts
Other · Current Nutrition & Food Science · 2017
Magnesium Intake and Sleep Disorder Symptoms: Findings from the Jiangsu Nutrition Study
Cohort · Nutrients · 2018 · n=1,487
Scores reflect these cited studies, not medical advice. Expand the full evidence detail below for protocols, dose context, and reported side effects.
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Claim ledger
Every claim, mapped to its source
Each product claim below is tied to a specific paper with study type, match strength, and limitations. Nothing here is medical advice — it is a research trail you can audit.
Claim match reflects how closely a specific paper supports this benefit — not AI confidence or medical certainty.
Full evidence detail
Study-by-study breakdown
Each paper below is ranked for this listing. Start with the highest match, then expand any study for a plain-language readout.
How to read this section
- Match % - how closely the study matches this product (not overall scientific quality).
- Evidence type - study design (RCT, review, etc.) and whether it is direct, category-level, or indirect.
- What it found - short summary and quoted extract from the paper metadata. Not medical advice.
In plain language
What the study reported
Verified extract — not AI generated
“Small improvements in sleep onset latency and total sleep time versus placebo, most relevant when baseline magnesium status is low.”
Trials used roughly 200-500 mg elemental magnesium daily, typically in the evening.
No serious adverse events; mild digestive effects reported. Generally well tolerated at studied doses.
Caveats
Included trials were small with low-to-moderate quality and heterogeneous designs; effect sizes are modest.
Transparency
Score history
Human review is pending for this listing.
Reviews
Shopper feedback
4.6
average rating
3,821 Amazon reviews were available from the listing metadata.