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Nature Made Magtein Magnesium L-Threonate

Magtein Magnesium L-Threonate

79B+
Grade B+ · capsule · 30 servings · $49.99
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Scored by the Formulate Research Team · Last reviewed July 2026

Score Breakdown

Three factors carry this score; three more are checked separately and can only take points away. Hover or tap to see what drove each one.

Evidence Qualityweight 40%
91/ 100
Dose Adequacyweight 35%
67/ 100
Form/Bioavailabilityweight 25%
83/ 100
Transparencyweight 0%
100/ 100
Safety/Redundancyweight 0%
100/ 100
Manufacturing Qualityweight 0%
80/ 100

Ingredients per Serving

Certifications & Testing

Gluten-Free

Other Ingredients

Cellulose Gel, Hypromellose, Silicon Dioxide, Magnesium Stearate

Recommended Use

Suggested use: Adults, take 3 capsules daily with water and a meal.

Warnings

Store tightly closed, in a cool, dry place, out of reach of children. Do not use if seal under cap is broken or missing. Caution: If you have a kidney disease, are taking any medications, or using beyond 3 months, consult your physician before use.

Frequently Asked Questions

What is Nature Made Magtein Magnesium L-Threonate's Formulate score?

Nature Made Magtein Magnesium L-Threonate scores 79 out of 100 (grade B+) on Formulate's ingredient-level rubric: clinical evidence, dose accuracy and bioavailability carry the score, while manufacturing, transparency and safety are checked separately and can only deduct.

Is Nature Made Magtein Magnesium L-Threonate worth it?

Nature Made Magtein Magnesium L-Threonate scores 79/100 (grade B+). That's an above-average result — most of its doses and ingredient forms are well-chosen, with only minor gaps in dosing, transparency, or testing. Formulate grades every product with the same automated rubric, so the score reflects the formula — not marketing or sponsorships.

What's in Nature Made Magtein Magnesium L-Threonate?

Each serving contains Vitamin C (60 mg), Vitamin D3 (10 mcg), Magnesium (130 mg). Serving size: 3 Capsule(s). 30 servings per container.

How do I take magtein magnesium l-threonate?

Suggested use: Adults, take 3 capsules daily with water and a meal.

Who makes Magtein Magnesium L-Threonate?

Magtein Magnesium L-Threonate is made by Nature Made. See Formulate's full grade and product lineup for Nature Made on its brand page.

Is Nature Made Magtein Magnesium L-Threonate third-party tested?

Nature Made lists the following certifications and testing for this product: Gluten-Free.

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Disclosure. Formulate may earn a commission from purchases made through links on this page. Commissions never influence scores — every product is graded by the same automated rubric. This page is for educational purposes only and does not replace advice from a qualified healthcare provider.