Magnesium oxide
108
labels across all brands · median 310 mg/serving
Brand · NIH DSLD
Basic Vitamins files 1 on-market magnesium label using one salt, oxide, with a median of 250 mg elemental magnesium per serving.
Salt portfolio · as filed
| Salt | Labels | Elemental fraction | Compound needed per 100 mg |
|---|---|---|---|
| oxide | 1 | 60.32% | 166 mg |
Composition across the portfolio · as filed
Label declarations · as filed
Filed declarations across this brand's labels: 2 distinct filed entries across 1 NIH DSLD labels, counted 2026-09-13; these are manufacturer statements.
What is not known · as of 2026-09-13
| Magnesium 250 mgNIH DSLD · Label 250165 · Tablet or Pill | oxide | 250 mg | 100 | 25.00 g | Pending verification |
Forms filed
108
labels across all brands · median 310 mg/serving
See all brands, all labels, or the priced form tables.
1 published excipient facets occur across 1 labels from Basic Vitamins in the NIH DSLD records, counted 2026-09-13.
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.