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Mag-Ox 400

Mag-Ox 400 Magnesium Supplement, Pharmaceutical Grade Magnesium Oxide with 482 mg Per Dose, 120 Tablets, Pack of 2

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Size: 120 Count (Pack of 2)


Pattern Name: Magnesium


Features

  • Mag-Ox is a mineral supplement made from magnesium oxide the most concentrated form of magnesium available: Mag-Ox is the pharmacist recommended magnesium supplement brand that helps maintain normal muscle and nerve function.
  • Magnesium supports over 300 chemical reactions within the body and Mag-Ox is at the center of all of them: magnesium is critical in helping convert carbohydrates, protein and fat into energy helping support the formation and release of energy from cells; up to 75% of Americans dont get enough magnesium in their diets; diuretics, proton pump inhibitors, cisplatin and cyclosporin deplete magnesium
  • Mag-Ox is the brand you can trust so you can lead a healthy energetic life: multivitamins deliver only a fraction of the Recommended Daily Allowance for magnesium; Mag-Ox meets or exceeds the RDA by delivering 482mg of magnesium per 2 tablet dose
  • Mag-Ox delivers the purest form of magnesium, to help you live a longer, healthier life: Mag-Ox magnesium tablets are sugar free, gluten free, and do not contain corn, soy, milk, eggs, shellfish, fish, yeast or animal byproducts
  • Mag-Ox magnesium supplements are coated for easy swallowing; take 2 tablets daily with food or as directed by a healthcare professional; you may only need to take 1 tablet per day

Description

Mag-Ox is a mineral supplement made from magnesium oxide – the most concentrated form of magnesium available: Mag-Ox is the no.1 pharmacist recommended magnesium supplement used throughout the body for a wide variety of functions. Magnesium supports over 300 chemical reactions in the body – and Mag-Ox is at the center of them all: Magnesium is critical in helping convert carbohydrates, protein and fat into energy – helping support the formation and release of energy from cells. Mag-Ox delivers the purest form of magnesium, to help you live a longer, healthier life: Mag-Ox magnesium tablets are sugar free, gluten free, and do not contain corn, soy, milk, eggs, shellfish, fish, yeast or animal byproducts. Mag-Ox magnesium supplements are coated for easy swallowing; take 2 tablets daily with food or as directed by a healthcare professional; you may only need to take 1 tablet per day. Inconsistent and inconclusive scientific evidence suggests diets with adequate magnesium.

Product Dimensions ‏ : ‎ 4.5 x 2.25 x 4.38 inches; 4.2 ounces


Item model number ‏ : ‎ 1074573


Date First Available ‏ : ‎ May 9, 2020


Manufacturer ‏ : ‎ Prestige Consumer Healthcare


Best Sellers Rank: #3,550 in Health & Household (See Top 100 in Health & Household) #83 in Magnesium Mineral Supplements


#83 in Magnesium Mineral Supplements:


Customer Reviews: 4.7 4.7 out of 5 stars (9,626)


Item Form: Tablet


Primary Supplement Type: Magnesium


Flavor: Unflavored


Product Benefits: Joint Health


Diet Type: Gluten Free


Unit Count: 240 Count


Number of Items: 2


Item Weight: 4.2 Ounces


Brand Name: Mag-Ox 400


Manufacturer: Prestige Consumer Healthcare


UPC: 760569494244


Global Trade Identification Number: 44


Manufacturer Part Number: 1074573


Model Number: 1074573


Material Type Free: Gluten Free


Allergen Information: Gluten Free


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Aug 5

This item is non-returnable:

Non-returnable due to Food safety reasons

View our full returns policy here.

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Top Amazon Reviews

    • GREAT, GREAT PRODUCT
Size: 120 Count (Pack of 1) Pattern Name: Magnesium
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show more
Reviewed in the United States on April 3, 2026 by Happy in Jax
    • Fixed my leg cramps
Size: 120 Count (Pack of 1) Pattern Name: Magnesium
Premenopauses kicking my butt, leg cramps made it impossible to sleep. This magnesium makes me feel like im 30 again. Well when I sleep. I don't wake up screaming from a Charlie horse.
Reviewed in the United States on February 6, 2026 by mcc85
    • Good quality, work well for me.
Size: 120 Count (Pack of 2) Pattern Name: Magnesium
Great value. Good quality
Reviewed in the United States on March 12, 2026 by Rahim Jahanian
    • Good choice
Size: 120 Count (Pack of 1) Pattern Name: Magnesium
My body needs a lot of magnesium I’m sold on this product
Reviewed in the United States on March 31, 2026 by Ms. Reads-A-Lot
    • Produce strong cramps
Size: 120 Count (Pack of 2) Pattern Name: Magnesium
Review Image by Arlyn Rivas
I had previously posted a review stating that one needed to be cautious with this vitamin if pregnant. The issue was that, at the time, I was also taking prenatal vitamins that contained a slightly higher-than-usual dose of iron—something I must take due to iron-deficiency anemia. It turned out that what was causing my lower abdominal pain was not the magnesium supplement, but rather the iron. Some time later, I stopped taking both supplements; eventually, I went back to testing each one individually. After I stopped taking the prenatals, these pills indeed proved to be quite helpful. However, they do not work if I take the iron as well, since the iron's effect is stronger than the action of this magnesium when taken together. I typically take them at night—around 11:00 PM, just as I am going to sleep—and the following morning I am able to have a bowel movement (except on the occasions when I take the iron, as the iron is what causes my constipation). I wanted to correct the comment I had previously left because I didn't feel it was fair to let it stand, given that since resuming them, they have actually been working for me. I will definitely be buying this brand again. ... show more
Reviewed in the United States on February 18, 2026 by Arlyn Rivas
    • Best price I’ve found anywhere.
Size: 120 Count (Pack of 2) Pattern Name: Magnesium
Good value for 2 bottles.
Reviewed in the United States on February 10, 2026 by Gmama
    • Great Product In Health For The Body
Size: 60 Count (Pack of 1) Pattern Name: Magnesium
Happy with the way this product works in my body, so this is why it gets a Five-Star Rating for as the quality in using this supplement. Will purchase again when the need arise.
Reviewed in the United States on February 26, 2026 by DES-SRT-8
    • Best supplement for those needing this kind of magnesium.
Size: 60 Count (Pack of 1) Pattern Name: Magnesium
As the mother of a child with celiac we have to watch her vitamin intake as she just doesn't get it all from a healthy diet and is athletic as well. This was recommended by her Dr and it has helped her tremendously. Easily absorbed and no stomach upset. She takes this in the morning along with iron at night. Both complement each other, but don't take them together. We've tried others, but this one has made the difference. Seller is quick and makes it affordable. ... show more
Reviewed in the United States on March 9, 2026 by Corinna Rawlinson

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