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🌙 Magnesium
Nutricost, Magnesium Oxide Capsules, 375 Mg, 240 Count
Cost per serving
$0.05
Low absorption
$10.99last seen · confirm on Amazon
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See the offer Magnesium Oxide cost per dose
Currently from $0.046 per serving across our tracked stores. Same molecule, dramatically different per-dose pricing — sorted bottom-up.
Prices checked Jun 23, 2026
See also: best Magnesium Oxide deals · Magnesium Oxide basics
NEW
🌙 Magnesium
McKesson, Mineral Supplement Geri-Care Magnesium Oxide 400 mg…
Cost per serving
$0.05
Low absorption
$6.24last seen · confirm on Amazon
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🌙 Magnesium
21st Century, Magnesium Oxide, 400 mg, 90 Tabs
Cost per serving
$0.06
Low absorption
$5.02last seen · confirm on Amazon
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🌙 Magnesium
Nutricost, Magnesium Oxide Capsules, 750 Mg, 240 Count
Cost per serving
$0.06
Low absorption
$14.95last seen · confirm on Amazon
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🌙 Magnesium
Basic Vitamins, Magnesium Oxide, 400 Mg, 120 Tabs
Cost per serving
$0.08
Low absorption
$9.19last seen · confirm on Amazon
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🌙 Magnesium
Windmill Health, Magnesium Oxide, 400 mg, 100 Tabs
Cost per serving
$0.08
Low absorption
$8.28last seen · confirm on Amazon
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🌙 Magnesium
Windmill Health, Magnesium Oxide, 400 mg, 60 Caps
Cost per serving
$0.11
Low absorption
$6.62last seen · confirm on Amazon
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🌙 Magnesium
Best Naturals, Magnesium Oxide, 500 mg, 180 Tabs
Cost per serving
$0.12
Low absorption
$21.99last seen · confirm on Amazon
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🌙 Magnesium
Nature's Truth, Magnesium Oxide Quick Release Capsules, 500…
Cost per serving
$0.13
Low absorption
$11.81last seen · confirm on Amazon
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See the offer Frequently asked
What is the cheapest Magnesium Oxide per dose?+
Nutricost, Magnesium Oxide Capsules, 375 Mg, 240 Count — $0.05 per serving ($10.99 for 240 servings), the lowest cost-per-dose magnesium oxide in our Amazon US catalog as of June 2026.
What is the typical cost per dose for Magnesium Oxide?+
About $0.07 per serving across 12 tracked magnesium oxide products, ranging from $0.05 for the best deals to $0.11 for premium options.
Is the cheapest Magnesium Oxide the best one to buy?+
Not always. The cheapest is sometimes cheaper because of the form — magnesium oxide costs less than glycinate per gram but absorbs at a fraction of the rate. Weigh cost-per-dose against form bioavailability and third-party testing, not price alone.