Magnesium citrate
118
labels across all brands · median 217.5 mg/serving
Brand · NIH DSLD
2 OL Olympian Labs magnesium products: Magnesium Citrate 400 mg, 133 mg per capsule, and Magnesium Citrate 400 mg, 133 mg per capsule. Prices inside.
OL Olympian Labs files 2 on-market magnesium labels using one salt, citrate, with a median of 400 mg elemental magnesium per serving.
Mass budget · computed
A Supplement Facts panel declares the element; the salt carrying it is heavier. Dividing each label's declared magnesium by its salt's elemental fraction gives the powder mass the serving must contain — and whether that fits a capsule.
| Capsule labels audited | 2 |
|---|---|
| Fit a size 0 or 00 capsule | 0 |
| Require the largest standard size, 000 | 2 |
| Exceed every standard capsule | 0 |
Method and the corpus-wide figure: label mass-budget audit.
Salt portfolio · as filed
| Salt | Labels | Elemental fraction | Compound needed per 100 mg |
|---|---|---|---|
| citrate | 2 | 11.3–16.16% | 619–885 mg |
Composition across the portfolio · as filed
Label declarations · as filed
Filed declarations across this brand's labels: 6 distinct filed entries across 2 NIH DSLD labels, counted 2026-10-17; these are manufacturer statements.
What is not known · as of 2026-11-02
| Magnesium Citrate 400 mgNIH DSLD · Label 326662 · Capsule | form not mapped yet | 400 mg | 33 | 13.20 g | Not tracked yet |
| Magnesium Citrate 400 mgNIH DSLD · Label 326663 · Capsule | form not mapped yet | 400 mg | 100 | 40.00 g | Not tracked yet |
Forms filed
118
labels across all brands · median 217.5 mg/serving
See all brands, all labels, or the priced form tables.
5 published excipient facets occur across 2 labels from OL Olympian Labs in the NIH DSLD records, counted 2026-10-17.
The metric
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.