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High Potency Magnesium 400 mg

Nature Made
4.8
★ ★ ★ ★ ★
(2082 ratings)
Magnesium 400 mg
Product Image
Score 35.0

A widely available and inexpensive magnesium product predominantly composed of poorly absorbed magnesium oxide, limiting its systemic benefits.

Quantity: 150 Softgel(s)Servings size: 1 Softgel(s) (150 servings)
Selected goals:
Other goals:
General Health
Energy
Stress Relief
Heart Health
Bone Health

Score 35.0

A widely available and inexpensive magnesium product predominantly composed of poorly absorbed magnesium oxide, limiting its systemic benefits.

Quantity: 60
Analysis

Nature Made High Potency Magnesium 400 mg primarily contains Magnesium Oxide. Despite its high elemental magnesium content on paper, Magnesium Oxide has a notoriously low absorption rate (around 4%), making most of the dose unavailable for systemic benefits such as energy production, stress relief, or bone health. It is primarily effective as a laxative. While Nature Made is a well-known and accessible brand, this particular formulation is not ideal for individuals seeking to address magnesium deficiency effectively or gain broad health benefits from supplementation. Its high review count likely reflects its affordability and widespread availability rather than its efficacy for systemic magnesium absorption.

Pros
  • Very affordable price per serving, making it a budget-friendly option.
  • Widely available from a nationally recognized brand.
Cons
  • Relies almost entirely on magnesium oxide, which has very low bioavailability for systemic absorption.
  • Primarily acts as a laxative rather than effectively supplementing magnesium for most health goals.
  • Unlikely to address true magnesium deficiencies effectively.
Warnings
  • Primarily acts as a laxative due to low absorption; may cause digestive discomfort or loose stools in many individuals.
$18.76($0.12 per serving)
Walmart
$ 18.76
Ingredients
IngredientAmount per serving
Calories 10 Calorie(s)
Total Fat 0.5 Gram(s)
Magnesium (Magnesium Oxide) 400 mg
Gluten Free Adults 18–50
Categories
Magnesium 35.0
As a magnesium supplement, its overwhelming reliance on poorly absorbed magnesium oxide makes it a suboptimal choice for systemic benefits.
Goals
General Health 30.0
Due to very low absorption, this product is largely ineffective for comprehensive general health support requiring systemic magnesium.
Energy 25.0
Minimal absorption means little magnesium is available to support cellular energy production, making it poor for energy enhancement.
Stress Relief 25.0
Poor systemic absorption means very little magnesium reaches the nervous system to provide stress-relieving effects.
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Magnesium Caps 400 mg

NOW
4.8
★★★★★
(29689 ratings)
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90 Value

Magnesium Caps 500 mg

Life Extension
4.8
★★★★★
(71611 ratings)
Offers superior chelated forms of magnesium at a significantly lower price per serving, providing exceptional value for genuine magnesium absorption and benefits.
80 Value

Triple Magnesium Complex 400 mg

Swanson
4.8
★★★★★
(15585 ratings)
Delivers a beneficial blend of magnesium forms, including citrate and aspartate, at a much lower price per serving, representing a better value for broader magnesium benefits than oxide alone.
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4.8
★★★★★
(71611 ratings)
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(4315 ratings)
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Swanson
4.8
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(5354 ratings)
Features TRAACS Magnesium Bisglycinate Chelate, a premium, highly absorbable form known for its gentleness and efficacy, far superior to Magnesium Oxide.