Magnesium Glycinate

1 research sources Also known as: magnesium bisglycinate glycinate chelated magnesium
240 Products on Market
220.0 mg Median Dose
🟡 79/100 Market Safety Score
1 Research Sources
Browse 240 products →

Product Forms

Capsule 55% Tablet or Pill 25% Powder 13% Softgel Capsule 3% Liquid 3% Other (e.g. tea bag) 1% Gummy or Jelly 0%

Dose Distribution

100-250 mg 90 25-50 mg 2 250-500 mg 86 50-100 mg 9 500-1000 mg 2 >1000 mg 1

Top Brands

Bluebonnet 10 KAL 10 Douglas Laboratories 9 BulkSupplements.com 9 Kirkman 8 Country Life 8 NOW 7 The Vitamin Shoppe 5 Solgar 5 Thorne 5 Metagenics 4 Solaray 4

Claims on Labels

All Other 100% Structure/Function 88% Nutrient 59% No Claim 0%

Common Co-Ingredients

Calories 0% Calories from Fat 0% Total Fat 0% Saturated Fat 0% Trans Fat 0% Cholesterol 0% Sodium 0% Potassium 0% Total Carbohydrates 0% Sugar, Unrefined 0%

Top-Rated Magnesium Glycinate Products

Chelated Magnesium 250 mg VitaCeutical Labs
Safety: 100 Tablet or Pill
Magnesium Glycinate Forte Douglas Laboratories
Safety: 100 Capsule
Amino Acid Chelated Magnesium
Amino Acid Chelated Magnesium Newflower Farmers Markets
Safety: 100 Tablet or Pill
Amino Acid Chelated Magnesium
Amino Acid Chelated Magnesium Newflower Farmers Markets
Safety: 100 Tablet or Pill
Magnesium Glycinate Chelate Designs for Health
Safety: 100 Capsule
View all Magnesium Glycinate products → Best Magnesium Glycinate rankings →

Claims vs. Evidence

75% Evidence-Backed
25% Unsupported
88% Structure/Function
Claim Type% of ProductsEvidence RequiredStatus
All Other 100% Tier D (Unclassified) ✅ Supported
Structure/Function 88% Tier C (DSHEA Structure/Function (no pre-approval)) ⚠️ Unsupported
Nutrient 59% Tier D (Unknown) ✅ Supported
No Claim 0% Tier D (No claim on label) ✅ Supported

Research by Topic

Magnesium Sleep 1 studies
CLI Magnesium Bisglycinate Supplementation in Healthy Adults Rep...

Research Evidence (1)

Clinical Trial: 1
B Magnesium Bisglycinate Supplementation in Healthy Adults Reporting Poor Sleep: A Randomized, Placebo-Controlled Trial
Clinical Trial Nature and science of sleep 2025 n=155

PURPOSE: To assess the effects of magnesium bisglycinate supplementation on insomnia symptoms in healthy adults reporting poor sleep quality. PATIENTS AND METHODS: This randomized, double-blind, placebo-controlled trial enrolled 155 adults aged 18-65...

PubMed DOI

Details

Magnesium Glycinate

Overview

Magnesium glycinate (also called magnesium bisglycinate) is a chelated form of magnesium where magnesium is bound to two glycine molecules.

Properties

Property Value
Chemical Formula Mg(C₂H₄NO₂)₂
Bioavailability High
Elemental Mg Content ~14%
Absorption Good, minimal laxative effect

Advantages

  • High bioavailability: Chelated form enhances absorption
  • Gentle on GI: Minimal laxative effect compared to other forms
  • Glycine synergy: Glycine itself may support sleep and relaxation
  • Good tolerability: Well-tolerated at therapeutic doses

Evidence for Sleep

Clinical trials using magnesium glycinate/bisglycinate for sleep: - Schuster et al. 2025 (PMID: 40918053): 250mg elemental Mg, 4 weeks, improved ISI scores - Generally shows positive results in sleep-deficient populations

Comparison to Other Forms

Form Bioavailability GI Tolerance Best For
Glycinate High Excellent Sleep, anxiety, daily use
Citrate High Good Constipation, general supplementation
Oxide Low Fair Not recommended for CNS effects
Threonate High Good Cognitive effects

Related Entities

Safety Notes

  • Generally well-tolerated
  • Less likely to cause diarrhea than citrate or oxide forms
  • Standard dosing: 200-400mg elemental magnesium

Entity page for magnesium glycinate compound

Related Supplements

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