Magnesium gluconate
14
labels across all brands · median 133 mg/serving
Brand · NIH DSLD
Rexall magnesium labels
Rexall files 2 on-market magnesium labels using one salt, oxide, with a median of 316.5 mg elemental magnesium per serving.
Labels (n)2
Median elemental mg/serving316.5 mg
Priced in gold set0
Salt portfolio · as filed
Which magnesium salts Rexall uses
| Salt | Labels | Elemental fraction | Compound needed per 100 mg |
|---|---|---|---|
| oxide | 1 | 60.32% | 166 mg |
Composition across the portfolio · as filed
What Rexall puts in the capsule besides magnesium
- 2 labels use a cellulose-based shell.
Label declarations · as filed
What Rexall claims on its labels
Filed declarations across this brand's labels: 4 distinct filed entries across 2 NIH DSLD labels, counted 2026-09-13; these are manufacturer statements.
- Adult (18 - 50 Years) — on 2 of 2 labels
- Gluten Free — on 2 of 2 labels
- Dairy Free — on 2 of 2 labels
- Sugar Free — on 2 of 2 labels
What is not known · as of 2026-09-13
Gaps in the record for Rexall
- 1 of 2 label does not name the magnesium salt in the filed record, so no compound mass can be computed for it.
- 2 of 2 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 2
| Calcium, Magnesium and ZincNIH DSLD · Label 239524 · Other (e.g. tea bag) | gluconate, oxide | 133 mg | Not filed | — | Not tracked yet |
| Magnesium 500 mgNIH DSLD · Label 44556 · Tablet or Pill | oxide | 500 mg | Not filed | — | Not tracked yet |
Forms filed
Compare within a form
Magnesium oxide
108
labels across all brands · median 310 mg/serving
See all brands, all labels, or the priced form tables.
Filed composition facets
4 published excipient facets occur across 2 labels from Rexall in the NIH DSLD records, counted 2026-09-13.
- cellulose: 2 of 2 labels.
- croscarmellose: 2 of 2 labels.
- citric acid: 1 of 2 labels.
- dicalcium phosphate: 1 of 2 labels.
The FDA adverse event reporting system (CAERS) holds 52 reports naming Rexall 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.