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Extra Strength Magnesium 500 mg

Mason Natural
4.8
(157 ratings)
Magnesium 500 mg
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Score85

An extra-strength, low-cost magnesium oxide tablet for basic mineral maintenance and gut regularity.

How scoring works
Quantity:100 Tablet(s)(100 servings)
Goals:
General Health
Digestive Health
Stress Relief
Energy

Score 85

An extra-strength, low-cost magnesium oxide tablet for basic mineral maintenance and gut regularity.

How scoring works
$7.41($0.07 per serving)
Walmart
$ 8.99
iHerb
$ 7.41
Pure Formulas
$ 8.09
iHerb
$ 7.41
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Analysis

Providing 500 mg of magnesium oxide per tablet, this supplement is aimed at providing a high elemental dose at a low price. Magnesium oxide is a stable form that works well for people who want to support their skeletal health or manage occasional constipation.

It may not be the first choice for someone seeking nervous system calm, but it fulfills the basic requirements for mineral repletion. The simple formula avoids unnecessary complexity, making it a direct way to supplement.

Pros

  • High elemental magnesium per tablet
  • Very low price per serving
  • Supports bone and gut health
  • Convenient 100-day supply

Cons

  • Poor absorption compared to citrate
  • Risk of laxative effects
  • Tablet can be difficult to swallow

Warnings

  • Reduce dose if loose stools occur
  • Check with a professional if you have kidney disease

Nutrient quality

69 High impact

Magnesium oxide provides high elemental weight but limited systemic bioavailability for metabolic processes. While the 500mg dose is significant, it is prone to causing loose stools before systemic repletion is achieved.

Ingredient transparency

95 Highest impact

Labeling clearly identifies the mineral form and provides the specific amount of elemental magnesium per tablet. Disclosure is adequate and follows standard industry practices for consumer information.

Customer satisfaction

88 Highest impact

Strong ratings indicate reliable performance for general mineral needs. Feedback suggests that the product is well-received for its cost-effectiveness and simple efficacy.

Value for money

89 Highest impact

Extremely low cost per serving makes this one of the most accessible mineral supplements available. Affordability provides significant value for budget-conscious consumers seeking basic mineral support.

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Goals

Impact
Highest effect
A+ Goal FitB- Strength of SupportC CoverageA Formula Quality

Magnesium is a critical mineral required for hundreds of metabolic processes, supporting cardiovascular health and muscle function. This high-dose option provides a significant elemental amount for daily maintenance.

Magnesium Oxide offers a high yield of elemental mineral but may have lower systemic absorption than organic chelates. Frequent use supports skeletal integrity and energy metabolism across multiple body systems.

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Impact
High effect
A- Goal FitB- Strength of SupportD+ CoverageA Formula Quality

Magnesium oxide serves as a potent osmotic laxative that effectively increases water content in the stool to promote bowel regularity. The 500 mg dose is substantial for addressing occasional constipation and supporting gastrointestinal motility.

However, the inorganic oxide form demonstrates poor systemic bioavailability and may cause gastrointestinal cramping in some users. Relying on a single mineral pathway limits the scope of support to stool regulation without addressing gut barrier health.

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Impact
High effect
B- Goal FitC Strength of SupportC- CoverageA Formula Quality

This single-mineral supplement provides a high elemental dose of Magnesium from an oxide source to support foundational health. It may contribute to general nervous system maintenance, although systemic absorption is often limited by the chemical form.

The 500 mg dosage is substantial for a single unit. However, the use of inorganic Magnesium Oxide increases the risk of gastrointestinal side effects compared to more bioavailable organic forms.

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Impact
High effect
C+ Goal FitC+ Strength of SupportD CoverageA Formula Quality

Metabolic processes require magnesium as a mandatory cofactor for enzymes that synthesize and utilize ATP. A 500mg dose of magnesium oxide provides a high elemental weight intended to support foundational energy levels.

Systemic bioavailability of magnesium oxide is lower than that of chelated mineral salts, which may limit its effectiveness for cellular energy support. This single-ingredient tablet offers an economical option for basic mineral supplementation.

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Impact
Moderate effect
B+ Goal FitD Strength of SupportD- CoverageB Formula Quality

Magnesium oxide at 500mg supports the regulation of blood pressure and vascular muscle tone. This essential mineral is necessary for maintaining healthy heart rhythm and supporting the relaxation of blood vessels.

Utilization of the oxide form is a common but less efficient way to provide magnesium due to its lower bioavailability. While it delivers a high amount of elemental magnesium, its potential for causing digestive issues may hinder consistent use.

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Impact
Moderate effect
B- Goal FitC- Strength of SupportD CoverageB Formula Quality

Foundational mineral support is provided through high-dose Magnesium to support natural endocrine balance. This building block appears well aligned with metabolic pathways that may contribute to healthy hormone synthesis.

While the elemental weight is substantial, the use of the oxide form may limit the efficiency of systemic uptake. The single-ingredient approach ensures focus on mineral repletion for broader metabolic health.

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Ingredients

IngredientAmount per serving
Magnesium (Magnesium Oxide)
500 mg
Gluten Free Adults 18–50 Vegetarian
Report overview
F Active Ingredient Quality & BioavailabilityC+ Dose, Safety & Label TransparencyD+ Value
This high-dose magnesium oxide supplement is a budget-friendly option for those requiring digestive support. Its main drawback is the low bioavailability of the oxide form, which is less effective for systemic magnesium needs.
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