Magnesium Hydroxide Powder

29 Reviews   |  
Same day shipping on orders placed Mon-Sat by 12pm PST.
Health Benefits Provided By Magnesium Hydroxide

Magnesium Hydroxide an inorganic magnesium salt with the chemical formula Mg(OH)2. Magnesium Hydroxide is a common ingredient many products designed to aid digestion. 


Magnesium Hydroxide may help reduce some acidity in the stomach, aid digestion, and promote bowel movements. It is also a source of magnesium which may support heart function and support healthy teeth & bones. 

  • Helps reduce stomach acidity
  • Aids digestion
  • Promotes bowel movements
  • Source of magnesium
  • Supports heart function
  • Fortifies the teeth & bones

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.

Supplement Facts
Serving size: 1000 milligrams
Serving per container: *
Amount Per Serving % Daily Value**
Magnesium (as Magnesium Hydroxide)...410 mg 97%
* Daily Value not established.
** Based on 2,000 calorie diet


Sugar, Soy, dairy, yeast, gluten, corn and additives

As a magnesium supplement, take 1000 mg daily, or as directed by physician.

Serving Size & Timing

This supplement is recommended to be taken in serving sizes of 1000mg per day. The FDA recommends that Magnesium be taken in servings of 400mg per day. And since this solution contains 42% Magnesium, consuming 1000mg of the total supplement will equal about 420mg, just a little bit more than the FDA recommended daily value for adults.

Because of this supplement's strong effects, it is recommended that no other medication be taken within one to two hours of taking this, as the Magnesium Hydroxide present in the stomach may cause the drug to not be absorbed correctly.

It has also been shown that the efficiency of Magnesium supplementation increases greatly when taking Calcium supplements along with it. For best results, it is recommended that Magnesium be consumed at a 1:2 ratio with Calcium. If taking 420mg of Magnesium with this supplement, you should also be taking 840mg calcium in order to balance out the effects.

Magnesium Hydroxide Concentration

Magnesium hydroxide comes in the form of a fine powder and it has no fillers of any kind present in it. It contains 42% elemental magnesium which is a very high concentration.

Magnesium Hydroxide Side Effects

Always consult a physician before taking any dietary supplement. Taking too much may cause adverse side effects such as diarrhea, which can rapidly deplete the body's supply of potassium. Muscle cramps may subsequently develop and inhibit the adsorption of iron and folic acid.

Those who have or have had severe kidney issues are recommended to make absolutely sure not to overdose on the total Magnesium content, as this could exacerbate their condition or cause it to resurface. Those who are healthy and have not been recommended this supplement by a doctor are advised to not take it for more than one week. If any side effects such as rectal bleeding or constipation occur or are still present, immediately discontinue use and call a doctor. These are usually indicative of another kind of serious condition that is not associated with this supplement.

The elderly and those that are already taking Magnesium-rich medications or supplements must consult a doctor before using this product.


This product is not very soluble in water. While this does make consumption a bit more complicated, it also means that it functions as a strong electrolyte, which may be of some use to those that work out often. This product should be stored in an area that is free from light, heat and moisture in order to preserve its potency.


There is no guarantee of specific results and results can vary.

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.

California residents: Click Here for Proposition 65 warning.

Customer Reviews

5 Based on 29 Reviews
5 ★
4 ★
3 ★
2 ★
1 ★
100reviewers would recommend this product Write a Review Ask a Question
  • Reviews
  • Questions

Thank you for submitting a review!

Your input is very much appreciated. Share it with your friends so they can enjoy it too!

Filter Reviews:
A Customer
Gale H.
Canada Canada

I really like the supplement

I really like the supplement

Terrice M.
United States United States

I would buy this again

I love their products. Easy to order and shipped in a timely manner.


magnesium bicarbonate yeah

Used this to make magnesium bicarbonate and it worked excellent. A great way to get magnesium and ph up that is buffered. My brother, dad and I all use this now and really like it.


upset stomach

This product seems to really help my horse that has stomach ulcers I will be reordering it again.


Magnesium Hydroxide

I found that Bulk Supplements carries the best supplements.The Magnesium Hydroxide really works for what I need if for in my body.Great product and great price of anywhere I have shopped,thanks Bulk Supplements for your great products.

You recently viewed

Clear recently viewed