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Our Members Asked:
Magnesium L-Threonate (Magtein): Health Effects & Safety
Answer:
Magnesium L-threonate is composed of magnesium bound to threonic acid (EFSA Panel, EFSA J 2024). Compared to other forms of magnesium, magnesium L-threonate contains a relatively small amount of elemental magnesium (only 8% compared to 11% to 60% for other forms of magnesium). However, it is of clinical interest due to an apparently unique ability to cross the blood-brain barrier and is, therefore, promoted for boosting memory and cognitive function, enhancing focus and concentration, improving mood and productivity, supporting sleep, reducing symptoms of attention-deficit/hyperactivity disorder (ADHD), and reducing stress. Magtein is a well-known patented form of magnesium L-threonate found in products by brands such as Doctors BEST, Double Wood, Jarrow Formulas, Life Extension, Momentous, NOW, and Source Naturals.
Sign in as a member to learn if clinical research supports the purported uses of magnesium L-threonate. Also, learn about possible side effects and interactions of magnesium L-threonate, find out what dose of this supplement seems best, and see popular brands of magnesium L-threonate. Also see our Top Pick for magnesium L-threonate in our Magnesium Supplements Review.
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