Home/ Supplements/ Electrolytes/ Magtein Magnesium L-Threonate 667 mg

Magtein Magnesium L-Threonate 667 mg

product on market Capsule Source Naturals Safety: 100/100
100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 33% of ingredients have research evidence
A Label Compliance Grade

What the Evidence Says

✨ AI-generated · Qwen 3.6 · methodology

Magnesium L-Threonate is researched for its ability to cross the blood-brain barrier to support cognitive function. Evidence for these effects is currently limited to small-scale studies. This formulation provides elemental magnesium to support general neurological health.

AI-generated summary based on research evidence. Not medical advice.

Label

Product Label

Label for Magtein Magnesium L-Threonate 667 mg
Open Full PDF View on NIH DSLD →
Details

Label Data

3 Capsule(s)
Serving Size
60
Servings
Mineral
Product Type
33%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

Calories
10 Calorie(s)
147 mg (35% DV)
Within RDA (0.3× RDA) 316 studies (A:8, B:159)
Magtein
2 Gram(s)

Other Ingredients

Gelatin Maltodextrin Magnesium Stearate Silica
Claims

Label Claims — Verification

Unverified Nutrient
Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Suggested Use: 3 capsules daily, preferably in divided doses. Start with 1 capsule daily and gradually increase to 3 capsules daily.

Warnings & Precautions

Caution: Not recommended for use by children or women who are pregnant, may become pregnant, or breastfeeding. If you are taking any prescription drugs, consult your health care professionals before using this product.

Caution: Not recommended for use by children or women who are pregnant, may become pregnant, or breastfeeding.

Do not use if either tamper-evident seal is broken or missing.

Keep out of the reach of children.

Formulation Notes

Magnesium L-Threonate 667 mg

For learning and memory

Magnesium (Mg) plays an essential role in supporting cognitive function and brain health. Preliminary research suggests that Magtein (magnesium L-threonate) may provide more magnesium to the brain than other forms of magnesium. In preclinical studies, Magtein was shown to support healthy memory and learning as well as healthy brain synapse density in regions of the brain associated with memory. These preclinical findings have now been validated by a clinical study showing positive results in tests of overall cognitive ability after 12 weeks' use of magnesium threonate.

Contains no yeast, dairy, egg, gluten, soy or wheat. Contains no preservatives, or artificial color, flavor or fragrance.

Additional Information

Store in a cool, dry place.

Metadata

Product Details

UPC / SKU0 21078 02486 6
DSLD Entry Date2022-09-22
Product TypeMineral
FormCapsule
BrandSource Naturals
DSLD ID274903
Data Updated2026-04-11
Research

Research Evidence

849
Research Sources
56
Avg Quality
450
Meta Analysis
152
Rct
137
Systematic Review
73
Clinical Trial
11
Regulatory Source
7
Other
7
Guideline
3
Openfda Safety
2
Cochrane Review
2
Observational
A Phosphate binders for preventing and treating chronic kidney disease-mineral and bone disorder (CKD-MBD)
Meta Analysis The Cochrane database of systematic reviews 2018 PubMed DOI
A Calcium supplementation (other than for preventing or treating hypertension) for improving pregnancy and infant outcomes
Meta Analysis The Cochrane database of systematic reviews 2024 PubMed DOI
A Calcium supplementation (other than for preventing or treating hypertension) for improving pregnancy and infant outcomes
Meta Analysis The Cochrane database of systematic reviews 2015 PubMed DOI
A Vitamin and mineral supplementation for maintaining cognitive function in cognitively healthy people in mid and late life
Meta Analysis The Cochrane database of systematic reviews 2018 PubMed DOI
A Calcium supplementation during pregnancy for preventing hypertensive disorders and related problems
Meta Analysis The Cochrane database of systematic reviews 2025 PubMed DOI
A Dietary calcium supplementation for preventing colorectal cancer and adenomatous polyps
Systematic Review The Cochrane database of systematic reviews 2008 PubMed DOI
A Calcium and vitamin D for increasing bone mineral density in premenopausal women
Systematic Review The Cochrane database of systematic reviews 2023 PubMed DOI
A Dietary sodium, sodium-to-potassium ratio, and risk of stroke: A systematic review and nonlinear dose-response meta-analysis
Meta Analysis Clinical nutrition (Edinburgh, Scotland) 2019 PubMed DOI
A The association between circulating magnesium and clinically relevant outcomes in patients with chronic kidney disease: A systematic review and meta-analysis
Meta Analysis Clinical nutrition (Edinburgh, Scotland) 2021 PubMed DOI
A Calcium channel blockers versus other classes of drugs for hypertension
Systematic Review The Cochrane database of systematic reviews 2021 PubMed DOI
View all evidence for Electrolytes →
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This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.