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Magnesium vs Magnesium L-Threonate
Compare Magnesium and Magnesium L-Threonate: timing, food, doses, forms and existing interaction guidance.
| Magnesium | Magnesium L-Threonate | |
|---|---|---|
| Category | Minerals | Minerals |
| Best time | Bedtime | Bedtime |
| Food | With or without food | With or without food |
| Common dose | 200–350 mg | 100–150 mg |
| Upper limit | 350 mg/day UL applies to all supplemental magnesium combined (not food); mainly to prevent diarrhea. | 350 mg/day UL applies to all supplemental magnesium combined (not food); mainly to prevent diarrhea. |
| Solubility | Water-soluble | Water-soluble |
| Description | Cofactor for 300+ enzymes, including those that activate vitamin D and produce ATP. Low intake is common in Western diets. | Form designed to raise magnesium in the brain, which it did in rats. In an industry-sponsored randomized trial in adults with sleep complaints, it improved sleep-quality scores. It supplies little elemental magnesium per gram, so it's a poor way to correct a deficiency. |
| Timing note | Evening or bedtime is popular because some people find it relaxing. Consistency matters more than timing. | Commonly taken in the evening, sometimes split morning and evening. |
| Forms to look for |
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| References |
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Common product or study range — not a personal recommendation. Upper limits are ceilings, not targets.
If you take both
Usually unnecessary — both supply magnesium, and the amounts add up.
Pick one form, or add up the elemental magnesium on both labels.
Common questions
What is the difference between Magnesium and Magnesium L-Threonate?
Magnesium: Cofactor for 300+ enzymes, including those that activate vitamin D and produce ATP. Low intake is common in Western diets. Magnesium L-Threonate: Form designed to raise magnesium in the brain, which it did in rats. In an industry-sponsored randomized trial in adults with sleep complaints, it improved sleep-quality scores. It supplies little elemental magnesium per gram, so it's a poor way to correct a deficiency.
Can I take Magnesium and Magnesium L-Threonate together?
Usually unnecessary — both supply magnesium, and the amounts add up.