NOW Supplements
Magtein® Magnesium L-Threonate
84/100
SUPPIE SCORE
65/100
EFFICACY
High
SAFETY
94/100
CLEANLINESS
What Does Magtein® Magnesium L-Threonate Do?
NOW Magtein® delivers 144 mg elemental magnesium as 2 g of the patented Magnesium L-Threonate form per 3-capsule serving, a dose used in human trials showing cognitive benefits.
How does Magtein® Magnesium L-Threonate compare to other magnesium forms for brain health?
What is the best way to take this supplement for cognitive support?
Are there any initial side effects when starting Magtein®?
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What Are the Benefits of Magtein® Magnesium L-Threonate?
Based on proven scientific research
Cognitive FunctionStrong
Memory & LearningModerate
Brain HealthStrong
Mood SupportModerate
Good For:
What Are the Side Effects of NOW Supplements Magtein® Magnesium L-Threonate?
Always consult your health practitioner if in doubt.
RiskLow Risk
Overview
•Magtein® at 2 g (144 mg elemental Mg) is well-tolerated in studies with no serious adverse effects reported.
•Initial side effects may include drowsiness, sleepiness or headaches; reduce dose if persistent.
•For adults only; consult physician if pregnant, nursing, taking medication or have medical condition.
•No known major drug interactions at this magnesium dose.
•Product is vegan, non-GMO, and free of major allergens (wheat, gluten, soy, milk, egg, fish, tree nuts).
Potential Side Effects
Inactive Ingredients
Cellulose (capsule)
Low RiskRice flour
Low RiskMagnesium stearate (vegetable source)
Low RiskSilica
Low RiskWhat Are the Ingredients in NOW Supplements Magtein® Magnesium L-Threonate?
Magnesium (from Magtein® Magnesium L-Threonate)
144 mg
Magtein® (Magnesium L-Threonate)
2 g (2000 mg)
Cellulose (capsule)
Rice Flour
Magnesium Stearate (vegetable source)
Silica
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Dosage & Bioavailability
How the active doses and forms in Magtein® Magnesium L-Threonate compare to the research.
•Magnesium (from Magtein® Magnesium L-Threonate) is listed at 144 mg per serving; without a source-specific reference range, dose adequacy cannot be graded.
•Magtein® (Magnesium L-Threonate) is listed at 2 g (2000 mg) per serving; without a source-specific reference range, dose adequacy cannot be graded.
Frequently Asked Questions
Common questions about NOW Supplements Magtein® Magnesium L-Threonate