Magnesium 500 mg
Sundown
Magnesium 500 mg
4.7
★ ★ ★ ★ ★
(30035 ratings)
Magnesium 500 mg
Score 60
A very affordable high-dose magnesium supplement, but its reliance on poorly absorbed Magnesium Oxide limits its efficacy for systemic health benefits, making it more suitable for digestive regularity.
Quantity: 180 Tablet(s) • (180 servings)
Goals: flag Heart Health flag Anti-Aging flag Cardiovascular Support flag Digestive Health flag Fitness
leaderboard Score 60
A very affordable high-dose magnesium supplement, but its reliance on poorly absorbed Magnesium Oxide limits its efficacy for systemic health benefits, making it more suitable for digestive regularity.
insights Analysis
Sundown's Magnesium 500 mg is attractive due to its low price and high dosage. However, the exclusive use of magnesium oxide significantly impacts its overall utility. Magnesium oxide contains a high percentage of elemental magnesium by weight, but its absorption rate in the body is notoriously low (estimated around 4%). This means that while you're taking 500mg, only a small fraction is likely to be utilized for systemic functions like energy production, muscle relaxation, or nerve function. It excels as an osmotic laxative, which is reflected in many online reviews. For comprehensive magnesium supplementation, more bioavailable forms are typically recommended.
- Extremely low price per serving.
- High elemental magnesium content per dose.
- Very popular, indicated by high review count.
- Effective for constipation relief.
- Magnesium Oxide has poor systemic bioavailability.
- Not ideal for achieving broader health benefits beyond laxative effect.
- May cause digestive upset (diarrhea) in higher doses due to laxative effect.
- Not the best choice if your primary goal is systemic magnesium absorption for energy, mood, etc.
$7.87($0.04 per serving)
 Amazon | $ 0.00 | |
 iHerb | $ 7.87 | |
 Vitacost | $ 8.69 |
Ingredients
| Ingredient | Amount per serving |
|---|---|
Magnesium | 500 mg |
Categories
Magnesium 60
Though incredibly cheap and high-dose, the exclusive use of magnesium oxide significantly limits its systemic absorption, making it primarily useful for laxative effects rather than comprehensive magnesium support.
Goals
Limited systemic absorption of magnesium oxide means it contributes minimally to overall general health beyond digestive regularity.
Due to poor absorption, the magnesium oxide is unlikely to significantly support cellular ATP production needed for energy.
Systemic absorption is crucial for magnesium's role in stress management; magnesium oxide is poorly suited for this.
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