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Magnesium 200 mg

Swanson Premium Brand
4.7
(1124 ratings)
Magnesium 400 mg
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Score94

The ultimate budget-friendly bulk bottle for long-term magnesium maintenance.

How scoring works
Quantity:500 Capsule(s)(250 servings)
Goals:
Energy
Digestive Health
General Health
Testosterone Support
Bone Health
Stress Relief
Cardiovascular Support

Score 94

The ultimate budget-friendly bulk bottle for long-term magnesium maintenance.

How scoring works
$10.99($0.04 per serving)
iHerb
$ 18.99
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Analysis

Providing 500 capsules per bottle, this product uses magnesium oxide to deliver a full 400mg dose at a rock-bottom price. While oxide has lower absorption, it is effective at providing basic mineral support and helping with bowel regularity.

It is a practical choice for individuals who want to maintain their magnesium status for heart and bone health without spending much. The simple capsule format is convenient for daily use over several months.

Pros

  • Unbeatable price per serving
  • 500 capsules last for over a year
  • Provides 400mg of elemental magnesium
  • Simple, no-frills formula

Cons

  • Oxide form is less efficiently absorbed
  • Uses gelatin (not vegetarian)
  • May require multiple capsules to reach the label dose

Warnings

  • Take with food to minimize laxative effects
  • Keep the bottle tightly closed in a cool area

Nutrient quality

81 Highest impact

Utilizing magnesium oxide provides a high concentration of elemental mineral but offers limited systemic absorption efficiency. A 400mg dose is meaningfully positioned for daily maintenance, though better forms exist for targeted cardiovascular or energy support.

Ingredient transparency

100 Highest impact

The label clearly discloses the elemental mineral weight and the simple nature of the active component. Directions for daily intake and serving sizes are presented with standard clarity for consumer guidance.

Customer satisfaction

95 Highest impact

Very strong ratings and a large review count indicate broad consumer approval from a long-standing budget brand. Users frequently report satisfaction with the product's value and its ability to support regularity and mineral status.

Value for money

100 Highest impact

This product represents one of the highest values in the category for total servings per dollar. Its extremely low price per serving makes it an ideal choice for budget-conscious individuals seeking basic mineral support.

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Goals

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

This high-capacity mineral supplement provides a therapeutic dose of magnesium for foundational metabolic support. While it delivers a robust elemental amount, the form used is not optimized for systemic absorption.

Ingredients like magnesium oxide act as essential cofactors for energy-producing enzymes in the body. However, the low bioavailability of this specific form may limit its contribution to sustaining mental and physical vitality compared to chelated alternatives.

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

This bulk-sized offering provides a standard therapeutic dose of magnesium oxide to support regular intestinal motility and comfort. It is an extremely economical option, though the inorganic form is known for having the lowest systemic absorption rate among magnesium salts.

Magnesium Oxide is the active ingredient.

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

Magnesium oxide provides a significant amount of elemental mineral to support foundational metabolic health. This form is often used to address daily vitality needs and common mineral deficiencies in the diet.

While the elemental dose is robust, the inorganic form may limit the percentage of magnesium successfully utilized by the body. Providing a large count of capsules appears well-aligned with long-term maintenance of basic mineral status.

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

Magnesium oxide is provided at a 400 milligram dose to support systemic mineral levels and healthy hormonal regulation. This mineral acts as a foundational building block and can help increase free hormone fractions by inhibiting binding proteins.

The reliance on the oxide form significantly limits the systemic bioavailability compared to organic chelates. While the dosage is high, its effectiveness for targeted hormonal support is compromised by its poor absorption potential.

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Impact
High effect
B+ Goal FitB- Strength of SupportD+ CoverageB- Formula Quality

Magnesium oxide is provided in a high-potency dose, serving as a structural component of the skeletal matrix and an essential cofactor for building-cell activity. While the elemental dose is significant, this inorganic mineral salt is less bioavailable compared to organic chelates and citrate forms.

Providing 400mg of magnesium supports the regulation of mineral transport and stimulated building-cell function. For a comprehensive skeletal result, this product would ideally be combined with foundational structural elements like calcium and signaling vitamins.

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

Magnesium oxide is provided here in a 400 mg dose to help replenish mineral levels and support relaxation. While the dosage is high, the choice of magnesium oxide limits the efficiency of systemic mineral uptake.

The bulk capsule format provides a budget-friendly option for long-term use. It lacks the advanced delivery systems found in more specialized relaxation aids.

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Ingredients

IngredientAmount per serving
Magnesium (Magnesium Oxide)
400 mg
Adults 18–50
Report overview
F Active Ingredient Quality & BioavailabilityA Dose, Safety & Label TransparencyD+ Value
This bulk bottle of magnesium oxide provides a therapeutic 400mg dose at an extremely low price per serving. While highly economical, the inorganic oxide form is not as effectively absorbed as organic mineral chelates.
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