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Magnesium Oxide 400mg

Windmill™ Magnesium Oxide 400 provides 480 mg of magnesium oxide per tablet. If you compare the Magnesium Oxide 400 mg formula to the Magox® formula, you will find out that the two formulas are almost identical; however, Windmill does not use artificial colors, flavors, or preservatives. Windmill’s promotional pricing will also give you the savings you are looking for.

For additional formula information, view the Supplement Facts panel.

All Windmill supplements are manufactured in the United States in an FDA-inspected facility whose GMPs (Good Manufacturing Processes) are independently verified by qualified certification organizations.

Free of artificial colors, flavors and preservatives, Windmill is a trusted name that has been providing America with quality supplements for over 40 years.

Magox® is a registered trademark of Blaine Pharmaceuticals, Burlington, KY

Gluten Free

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Magnesium Oxide 400mg are available in:

Item # Quantity Type




Supplement Facts

Serving Size: 2 Tablets

Amount Per Serving % DV
Magnesium (as magnesium oxide) 480 mg 120%


Other Ingredients: Microcrystalline cellulose, croscarmellose sodium, stearic acid, silica, magnesium stearate, and film coat (hydroxypropylmethylcellulose, titanium dioxide, polydextrose, talc, maltodextrin, medium chain triglycerides).

SUGGESTED USE: Take 2 tablets with meals as a dietary supplement or as directed by a healthcare professional.