SPECIMEN #NATURES-
Verified
MineralsNature's Bounty
Magnesium 500mg
500mg magnesium oxide at 4% absorption = approximately 20mg actual magnesium. A handful of almonds delivers more. At this dose, the primary effect is diarrhea. This is a laxative marketed as a mineral supplement. Buy literally any other form.
4.0/10
POOR500mg magnesium oxide with only ~4% bioavailability means roughly 20mg of actually absorbed magnesium. Despite exceeding optimal on the label (500mg vs 400mg optimal), the oxide form makes it functionally a laxative rather than a mineral supplement. Significantly worse than cheaper glycinate or citrate alternatives.
1 ingredientTablets100 servings
Evidence
7.0
Dosing
10.0
SynergyN/A (single ingredient)
What We Like
- Effective osmotic laxative.
- Very cheap.
Watch Out For
- 4% bioavailability.
- 500mg will cause diarrhea in most people.
- Delivers ~20mg absorbed magnesium.
- A handful of almonds provides more usable magnesium.
What We Analyzed
Verified Supplement Facts
Every dose checked against clinical research
We analyzed the actual supplement facts panel for this product. Every ingredient dose below was cross-referenced with published clinical trials to determine if it matches what studies actually use.
1 ingredients analyzed1 at clinical doses
Source: Official product page
Ingredient Breakdown
1 clinical
Clinical Adequate Underdosed Overdosed|Bar = % of clinical dose
IngredientDoseStatusvs. Clinical
In our database (click to learn more) Not yet reviewed
Our Analysis
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