Magnesium oxide
108
labels across all brands · median 320 mg/serving
Brand · NIH DSLD
Finest Nutrition magnesium supplements: 4 products in 2 forms, 133–500 mg of magnesium per serving
4 Finest Nutrition magnesium products in 2 forms, led by oxide (4); median 325 mg of magnesium per serving. Inside: each product's mg and price.
Finest Nutrition files 4 on-market magnesium labels using one salt, oxide, with a median of 325 mg elemental magnesium per serving.
Labels (n)4
Median elemental mg/serving325 mg
Priced in gold set0
Salt portfolio · as filed
Which magnesium salts Finest Nutrition uses
| Salt | Labels | Elemental fraction | Compound needed per 100 mg |
|---|---|---|---|
| oxide | 3 | 60.32% | 166 mg |
Composition across the portfolio · as filed
What Finest Nutrition puts in the capsule besides magnesium
- 1 label uses a gelatin shell.
- 3 labels use a cellulose-based shell.
Label declarations · as filed
What Finest Nutrition claims on its labels
Filed declarations across this brand's labels: 5 distinct filed entries across 4 NIH DSLD labels, counted 2026-10-17; these are manufacturer statements.
- Adult (18 - 50 Years) — on 4 of 4 labels
- Gluten Free — on 4 of 4 labels
- Dairy Free — on 4 of 4 labels
- Sugar Free — on 4 of 4 labels
- Vegetarian — on 2 of 4 labels
What is not known · as of 2026-11-02
Gaps in the record for Finest Nutrition
- 1 of 4 label does not name the magnesium salt in the filed record, so no compound mass can be computed for it.
- 4 of 4 labels have no US retail listing matched as of 2026-11-02. That is a matching gap on our side, not evidence of unavailability.
Labels 4
| Calcium, Magnesium & ZincNIH DSLD · Label 64451 · Tablet or Pill | gluconate, oxide | 133 mg | Not filed | — | Not tracked yet |
| Magnesium 250 mgNIH DSLD · Label 63995 · Tablet or Pill | oxide | 250 mg | Not filed | — | Not tracked yet |
| Magnesium 400 mgNIH DSLD · Label 60543 · Softgel Capsule | oxide | 400 mg | Not filed | — | Not tracked yet |
| Magnesium 500 mgNIH DSLD · Label 76461 · Tablet or Pill | oxide | 500 mg | Not filed | — | Not tracked yet |
Forms filed
Compare within a form
Magnesium gluconate
14
labels across all brands · median 133 mg/serving
See all brands, all labels, or the priced form tables.
Filed composition facets
7 published excipient facets occur across 4 labels from Finest Nutrition in the NIH DSLD records, counted 2026-10-17.
- cellulose: 3 of 4 labels.
- croscarmellose: 3 of 4 labels.
- dicalcium phosphate: 1 of 4 labels.
- gelatin: 1 of 4 labels.
- glycerin: 1 of 4 labels.
- medium chain triglycerides: 1 of 4 labels.
- silicon dioxide: 1 of 4 labels.
The FDA adverse event reporting system (CAERS) holds 42 reports naming Finest Nutrition as of 2026-10-19. 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.