Magnesium 500 mg
Nature's Bounty
Magnesium 500 mg
4.8
★ ★ ★ ★ ★
(7428 ratings)
Magnesium 500 mg
Score 30
An incredibly affordable, high-dose magnesium supplement using magnesium oxide. Its low bioavailability renders it largely ineffective for systemic health goals, making its primary use as a laxative.
Quantity: 100 Tablet(s) • (100 servings)
Goals: flag Heart Health flag Anti-Aging flag Cardiovascular Support flag Digestive Health flag Fitness
leaderboard Score 30
An incredibly affordable, high-dose magnesium supplement using magnesium oxide. Its low bioavailability renders it largely ineffective for systemic health goals, making its primary use as a laxative.
insights Analysis
Nature's Bounty Magnesium 500 mg provides a high dose of 500mg of magnesium, exclusively in the form of Magnesium Oxide. While the dose is substantial and the price per serving is exceptionally low, Magnesium Oxide is known for its very poor systemic bioavailability, typically absorbing only about 4%. This means that an extremely minimal amount of this magnesium will be absorbed for physiological functions like supporting energy, stress relief, heart health, bone health, mood, metabolism, or sleep. Its primary and most effective function is as an osmotic laxative. The high review count likely includes many users who appreciate its cost-effectiveness or its intended laxative properties.
- Very high dose of elemental magnesium per serving
- Exceptionally low price per serving
- Popular brand with a high number of reviews
- Extremely low systemic bioavailability of Magnesium Oxide
- Strong potential for laxative effects due to poor absorption
- Not suitable for comprehensive magnesium repletion for broad health goals
- High doses of poorly absorbed magnesium are highly likely to cause diarrhea or significant gastrointestinal upset.
- Not recommended for addressing systemic magnesium deficiency unless the primary concern is constipation.
$5.92($0.05 per serving)
 Walmart | $ 5.92 | |
 Vitacost | $ 7.49 | |
 Amazon | $ 7.88 | |
 iHerb | $ 10.30 |
Ingredients
| Ingredient | Amount per serving |
|---|---|
Magnesium | 500 mg |
Categories
Magnesium 35
Offers a very high quantity of magnesium at an excellent price point, but its very low systemic bioavailability due to being Magnesium Oxide significantly limits its functional value for comprehensive supplementation.
Goals
Despite the high elemental dose, the very low systemic absorption of Magnesium Oxide severely limits its contribution to the body's overall general health and functional processes.
Optimal energy production from magnesium requires efficient systemic absorption, which is profoundly lacking with Magnesium Oxide, resulting in minimal direct energy benefits.
For magnesium to alleviate stress, systemic availability is essential, a function poorly provided by the low absorption of Magnesium Oxide into the nervous system.
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Triple Magnesium Complex 400 mg
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(15589 ratings)
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★★★★★
(71620 ratings)
Contains highly bioavailable chelated forms (Lysyl Glycinate, Succinate, Citrate) that are significantly better absorbed than Magnesium Oxide, providing superior systemic benefits.
95 Performance
Target-Mins Magnesium Potassium Aspartate With Other Target-Mins Chelates
Country Life
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★★★★★
(4315 ratings)
Offers a broad spectrum of highly bioavailable magnesium forms, comprehensively addressing magnesium needs more effectively than a solely oxide-based product.
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Chelated Magnesium 133 mg
Swanson
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★★★★★
(5354 ratings)
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