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Product Rating

Overall: 10/10
Effectiveness: 10/10
Value: 10/10
#Reviews: 1

Flavour Rating

Overall: 5/10
Unflavoured: 5.0/10

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NOW Magnesium Oxide Powder, 227g

Vitamart Price:  $11.97
Quantity (2 available) 
In Stock
Frequently Bought Together For Only $26.96
NOW Magnesium Oxide Powder, 227g
NOW Magnesium Oxide Powder, 227g

+ Progressive Vitamin C Complex
Progressive Vitamin C Complex

Buy Together for only $26.96

NOW Magnesium Oxide Powder Details

  • 100% Pure Powder
  • Supports Energy Production
  • Critical for Enzyme Function*

Magnesium is a mineral that is critical for energy production and metabolism, muscle contraction, nerve impulse transmission, and bone mineralization.* It is a required cofactor for an estimated 300 enzymes.* Among the reactions catalyzed by these enzymes are fatty acid synthesis, protein synthesis, and glucose metabolism.* Magnesium status is also important for regulation of calcium balance through its effects on the parathyroid gland.*

NOW Magnesium Oxide Powder Reviews*

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Product rating*

Product Rating: 10/10

Customer Reviews*

  • 10/10  Cheap, safe, and effective laxative

    By Dude on Friday, February 14, 2020 09:06 PM

    Effectiveness: 10/10

    (+) First Dose Results,Good Value,Mixes Well

    How did you use it?:Everyday,Before Bed,Every Morning

    "I use magnesium oxide daily as an osmotic laxative. 1000mg per day elemental magnesium works just as well as the standard dose of Miralax I used to take, but is much safer and cheaper. (Regular Miralax use can cause health issues like hyperoxaluria and kidney issues).

    Magnesium oxide is not well absorbed (studies put it as only about 20% as effective as magnesium citrate as a supplement), so it makes a better laxative than a supplement. My blood magnesium tested towards the lower end of the reference range even taking 1000mg per day of elemental magnesium from this magnesium oxide.

    Magnesium oxide is quite alkaline, so it will also act as an antacid, which may or may not be desireable. I take mine with lemon juice to neutralize it."

    Would you buy this product again? Yes

    Flavours Rating
    Unflavoured   5
    Verified by Vitamart Purchaser

    Was this review helpful?  Yes   No  

*Review Disclaimer: Not everyone has these results. Product experiences vary from person to person. Please use these reviews for information only as they have not been reviewed by a medical professional. Do not substitute the informatioin in the reviews for advice from your physician or other health care professional or any information contained on or in any product label or packaging.

Suggested Use

Mix 1/4 level teaspoon of NOW Magnesium Oxide Powder, 227g powder into at least 6 oz. of cold water or clear liquid. Take once daily with a meal. Pure Magnesium Oxide Powder can increase the temperature of liquids upon contact; therefore, the recommended serving MUST be mixed into at least 6 oz. of cold liquid to neutralize this reaction prior to ingestion.

Nutrition Facts
Serving Size:  1/4 Level Teaspoon 
Servings per Container: 324
Amount Per Serving
% Daily Value *
Magnesium (as Magnesium Oxide)
290 mg  100%
* Percent daily values are based on a 2000 calorie diet
  † Daily Value not established
Note: Serving Sizes are rounded to the nearest whole serving

Additional Ingredients: n/a

Allergy Information: Contains no: yeast, milk, wheat, gluten, egg, corn, soy. 

Warning: n/a

Product Disclaimer

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