How much does one serving of Nature Made Magtein Magnesium L-Threonate cost?

$0.39 per serving, which is 144mg of magnesium l-threonate in capsule form, against a typical $0.34 across the 15 magnesium l-threonate products we can price per dose, a Value Index of 0.9 where the median product is 1.0. Worked out from the current retail price as of 2026-11-13, not the sticker price.

How long does one container of Nature Made Magtein Magnesium L-Threonate last?

90 days at the label dose of 1 serving a day, which is about $11.59 a month.

What does it cost to reach the commonly studied 300 mg dose?

About $0.81 a day, which takes 2.1 servings of this product. The studied dose is a reference point from published research, not a recommendation — talk to a clinician about your own intake.

Is Nature Made third-party tested?

Nature Made appears in the USP public registry. A certification confirms the label matches the contents and screens for contaminants; it says nothing about how well the supplement works.

3rd-party tested

Nature Made Magtein Magnesium L-Threonate

Amazon.comPosted 28 days ago

Our verdict

Nature Made Magtein Magnesium L-Threonate works out to $0.39 per serving of magnesium l-threonate, at 144mg per serving in capsule form. That puts it around the median of the 15 magnesium l-threonate products we can price per dose, where the typical serving costs $0.34, a Value Index of 0.9 where the median product is 1.0. One container lasts 90 days at the label dose of 1 serving a day, about $11.59 a month. Nature Made appears in the USP public registry. Worked out from the current retail price as of 2026-11-13; confirm the live price on Amazon.com before buying.

Cost per servingTypical

$0.39/ serving

90 servings · ~$11.59/mo · 90-day supply

You pay

$34.78

Price checked 1 hour ago
direct from Amazon.com

Nature Made Magtein Magnesium L-Threonate

Our verdict

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