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Magnesium 200 mg

Swanson
4.7
★ ★ ★ ★ ★
(1201 ratings)
Magnesium 400 mg
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Score94

A high-value, bulk-sized magnesium oxide capsule for simple daily support.

How scoring works
Quantity:250 Capsule(s) • (125 servings)
Goals:
Energy
Digestive Health
General Health
Heart Health
Testosterone Support
Bone Health
Cardiovascular Support
Stress Relief

Score 94

A high-value, bulk-sized magnesium oxide capsule for simple daily support.

How scoring works
$9.47($0.07 per serving)
Walmart
$ 8.81
iHerb
$ 12.69
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Analysis

This product provides 400mg of magnesium from oxide in each capsule. While it isn't as bioavailable as organic salts, it provides a high density of the mineral in a small pill, making it easy to hit your daily target.

The 250-count bottle offers a steady supply for four months, making it a convenient and cost-effective addition to a basic wellness routine. It is a practical tool for filling nutritional gaps without unnecessary complexity.

Pros

  • Excellent price for 125 servings
  • Standard 400mg elemental dose
  • Small, easy-to-take capsule
  • Reliable basic mineral support

Cons

  • Magnesium oxide form is not easily absorbed
  • Contains gelatin (not vegan)

Warnings

  • Can lead to mild stomach cramping if taken without food
  • Expect a mild laxative effect

Nutrient quality

81 Highest impact

Utilizing magnesium oxide provides a high concentration of elemental mineral but offers poor 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

Strong ratings and a significant review count indicate broad consumer approval from a well-regarded 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

The price per serving is exceptionally low, offering one of the most economical ways to access high-potency magnesium. High quantity per container ensures a low daily cost for the consumer.

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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 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.

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 an essential mineral to support foundational metabolic health and neuromuscular function. This foundational nutrient is necessary for hundreds of biological processes critical for daily vitality.

While the elemental weight is robust at 400 mg, the inorganic form may limit the efficiency of systemic uptake. This approach appears well-aligned with maintaining long-term mineral status in a cost-effective manner.

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

Magnesium oxide provides a significant amount of elemental mineral to support heart rhythm and vascular tone. This simple formula is a budget-friendly option for maintaining foundational mineral levels.

The low bioavailability of the oxide form reduces the potential for systemic cardiovascular benefit compared to organic mineral salts. A 400mg dose is meaningfully high and aligns with maintenance goals for most individuals.

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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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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 entry-level magnesium supplement provides a therapeutic 400mg dose of magnesium oxide. It is an extremely economical option for general mineral supplementation from a well-regarded budget brand.
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