Home/ Supplements/ Electrolytes/ Magnesium L-Threonate 800 mg

Magnesium L-Threonate 800 mg

product on market Capsule Barlowe's Herbal Elixirs Safety: 60/100
60/100

Review before taking

  • Magnesium L-Threonate: 800mg is 2.3× the Tolerable Upper Intake Level (350mg)
  • 100% of ingredients have research evidence
C Label Compliance Grade

What the Evidence Says

AI-generated · Qwen 3.6 · grounded in 1 source · methodology

Magnesium L-Threonate is researched for its potential to cross the blood-brain barrier to support cognitive function, though evidence remains limited. Due to a safety score of 60/100, users should be aware of potential side effects or contraindications. Consult a professional regarding dosage and suitability.

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

Alerts

Safety Alerts

Magnesium L-Threonate: 800mg is 2.3× the Tolerable Upper Intake Level (350mg)

AI-generated · Qwen 3.6 · grounded in 2 sources · methodology

This product received a low safety score because it contains 800mg of Magnesium L-Threonate, which is more than double the recommended daily upper limit of 350mg.

Label

Product Label

Label for Magnesium L-Threonate 800 mg
Open Full PDF View on NIH DSLD →
Details

Label Data

1 Capsule(s)
Serving Size
60
Servings
Mineral
Product Type
100%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

Exceeds UL by 2.3× (UL: 350 mg) 316 studies (A:8, B:159)

Other Ingredients

Cellulose
Claims

Label Claims — Verification

Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Directions: As a dietary supplement, take 1 capsule 2 or 3 times daily with food.

Warnings & Precautions

May increase magnesium levels in the brain.

Warning: Consult your physician prior to using this product if you are pregnant, nursing, taking medication, or have a medical condition.

Formulation Notes

No stearates! No fillers, soy, corn, rice, wheat, yeast, dairy, artificial colors or flavors, or titanium dioxide. Non-GMO.

Promotes healthy sleep & cognitive function

Vegetarian standardized extract

Magnesium L-threonate 800 mg per capsule

Additional Information

For more information call 954-479-4320 or go to BarlowesHerbalElixers.com.

Metadata

Product Details

DSLD Entry Date2024-03-22
Product TypeMineral
FormCapsule
DSLD ID307173
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
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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
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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.