Magnesium oxide
108
labels across all brands · median 310 mg/serving
Brand · NIH DSLD
Nature's Bounty magnesium labels
Nature's Bounty files 5 on-market magnesium labels using one salt, oxide, with a median of 500 mg elemental magnesium per serving.
Labels (n)5
Median elemental mg/serving500 mg
Priced in gold set0
Salt portfolio · as filed
Which magnesium salts Nature's Bounty uses
| Salt | Labels | Elemental fraction | Compound needed per 100 mg |
|---|---|---|---|
| oxide | 5 | 60.32% | 166 mg |
Composition across the portfolio · as filed
What Nature's Bounty puts in the capsule besides magnesium
- 5 labels use a cellulose-based shell.
Label declarations · as filed
What Nature's Bounty claims on its labels
Filed declarations across this brand's labels: 5 distinct filed entries across 5 NIH DSLD labels, counted 2026-09-13; these are manufacturer statements.
- Adult (18 - 50 Years) — on 5 of 5 labels
- Gluten Free — on 5 of 5 labels
- Dairy Free — on 5 of 5 labels
- Sugar Free — on 5 of 5 labels
- Vegetarian — on 3 of 5 labels
What is not known · as of 2026-09-13
Gaps in the record for Nature's Bounty
- 5 of 5 labels have no US retail listing matched as of 2026-09-13. That is a matching gap on our side, not evidence of unavailability.
Labels 5
| Magnesium 250 mgNIH DSLD · Label 65689 · Tablet or Pill | oxide | 250 mg | Not filed | — | Not tracked yet |
| Magnesium 250 mgNIH DSLD · Label 72877 · Other (e.g. tea bag) | oxide | 250 mg | Not filed | — | Not tracked yet |
| Magnesium 500 mgNIH DSLD · Label 236914 · Tablet or Pill | oxide | 500 mg | Not filed | — | Not tracked yet |
| Magnesium 500 mgNIH DSLD · Label 242510 · Tablet or Pill | oxide | 500 mg | Not filed | — | Not tracked yet |
| Maximum Strength Magnesium 500 mgNIH DSLD · Label 49483 · Tablet or Pill | oxide | 500 mg | Not filed | — | Not tracked yet |
Forms filed
Compare within a form
See all brands, all labels, or the priced form tables.
Filed composition facets
4 published excipient facets occur across 5 labels from Nature's Bounty in the NIH DSLD records, counted 2026-09-13.
- cellulose: 4 of 5 labels.
- dicalcium phosphate: 3 of 5 labels.
- microcrystalline cellulose: 1 of 5 labels.
- silicon dioxide: 1 of 5 labels.
The FDA adverse event reporting system (CAERS) holds 548 reports naming Nature's Bounty as of 2026-09-13. This is a count of submitted reports across all the firm's products; it is not an incidence rate and implies no causation.
The metric
What EC100 measures
EC100 = container price ÷ (elemental mg per serving × servings per container ÷ 100)
It normalizes the declared elemental amount to a 100 mg unit. It does not score ingredients, quality, or outcomes.