Label arithmetic · NIH DSLD 9135
Bronson Potassium & Magnesium Aspartate
Bronson Potassium & Magnesium Aspartate declares 21 mg of elemental magnesium as aspartate, which needs 249 mg of salt per unit and fits a standard size 0 capsule; NIH DSLD 9135, label dated 2012-06-01, calculation 2026-09-13.
Mass budget · computed; capsule comparison · modelled
What the declared salt would weigh
Bronson Potassium & Magnesium Aspartate declares 21 mg of elemental magnesium per serving in NIH DSLD 9135, requiring 249.41 mg of magnesium aspartate under the salt model calculated 2026-09-13.
| Step | Value | Evidence |
|---|---|---|
| Declared elemental magnesium | 21 mg per serving | observed · label 2012-06-01 |
| Resolved salt | Magnesium aspartate · label-row | computed · name resolved from filed text |
| Reference formula | Mg(C₄H₆NO₄)₂; 288.5 g/mol | computed · chemical reference |
| Elemental fraction | 8.42% by mass | computed |
| Compound mass per serving | 249.41 mg = 21 mg ÷ elemental fraction | computed |
| Compound mass per discrete unit | 249.41 mg | computed |
At powder density 0.6–0.8 g/mL, 249 mg of powder fits a size 0 capsule (holds about 545 mg).
The verdict uses the most favourable reading for the product — the smallest compound mass the label allows. It excludes the shell and other ingredients; their unreported masses are not added as guesses.
Size 0 holds about 545 mg, size 00 about 730 mg, and size 000 about 1,100 mg at powder density 0.6–0.8 g/mL. These are model inputs, not measurements of this product's capsule. Read the mass-budget method.
Label facts and derived measurements
The numbers for this label
Bronson Potassium & Magnesium Aspartate has 11 published fields below, traced to NIH DSLD 9135 and the 2026-08-10 registry snapshot, with calculations dated 2026-09-13.
| Field | Value | Evidence tier |
|---|---|---|
| NIH DSLD identifier | 9135 | observed |
| Resolved salt | Magnesium aspartate | computed |
| Source of the resolved salt | label-row | observed |
| Elemental magnesium per serving (mg) | 21 | observed |
| Servings per container | Servings not filed as of 2026-09-13 | observed |
| Elemental magnesium per container (mg) | Container magnesium not computable as of 2026-09-13 | computed |
| Compound mass per discrete unit | 249.41 mg | computed |
| Capsule fill verdict | fits-0 | modelled |
| Required standard capsule size | 0 | modelled |
| Label date | 2012-06-01 | observed |
| Retail match confidence | unmatched | computed |
Observed means a value transcribed from a label or price observation. Computed means arithmetic or normalization of those inputs. Modelled means the result depends on a stated physical assumption, including capsule capacity. Evidence tiers and their limits.
Source transcription · observed
Magnesium lines as filed
Bronson Potassium & Magnesium Aspartate retains 1 magnesium-related rows in NIH DSLD 9135, including 1 rows selected for the primary serving, from label 2012-06-01, examined 2026-09-13.
| Filed amount | Serving order | Filed salt / notes | Calculation role |
|---|---|---|---|
| 21 mg | 1 | aspartate Magnesium (Form: as magnesium diaspartate) | Selected primary serving |
The elemental amount comes from the selected magnesium line. A salt named under another nutrient does not make that nutrient's quantity an elemental magnesium value. Distinct unresolved primary amounts remain ambiguous; they are not added together.
Package arithmetic · observed inputs, computed totals
What the package works out to
Bronson Potassium & Magnesium Aspartate has no filed serving count for package arithmetic in NIH DSLD 9135, according to label 2012-06-01, calculated 2026-09-13.
| Net contents as filed | 120 Capsule(s) |
|---|---|
| Discrete units in the package | 120 |
| Serving size as filed | 1 Capsule(s) |
| Units per serving | 1 |
| Servings per package | Servings not filed as of 2026-09-13 |
| Daily servings in the label instructions | 1 |
| Days per package at the label's own serving | Days not computable from filed frequency and serving count as of 2026-09-13 |
Days = filed servings per container ÷ filed servings per day. If the label gives a frequency range, the largest frequency gives the shortest duration. Cost per serving = observed item price ÷ filed servings; cost per label-day multiplies this by the filed frequency. This follows the label's own instructions; it is package arithmetic, not intake advice.
Percent daily value · observed and computed
The label's percent daily value, recomputed
Bronson Potassium & Magnesium Aspartate files 1 magnesium percent-daily-value entries in NIH DSLD 9135; the check below applies the group-specific references in 21 CFR 101.9 to its 21 mg primary serving, calculated 2026-09-13.
| Group as filed | Declared | Reference | Recomputed | Difference |
|---|---|---|---|---|
| Adults and children 4 or more years of age | 5% | 420 mg | 5% | 0 percentage points |
Percent daily value = declared elemental mg ÷ the group's reference mg × 100, rounded to an integer. The adult and age-four-plus reference is 420 mg. Historical labels can use earlier references; a difference does not establish a filing error. Full-record entries may cover multiple serving sizes, so this table identifies the primary-serving basis explicitly. Group references and interpretation.
Composition · observed
Other ingredients in the filed record
Bronson Potassium & Magnesium Aspartate lists 2 other ingredients in NIH DSLD 9135, label dated 2012-06-01, examined 2026-09-13.
| Entry | Ingredient |
|---|---|
| 1 | Gelatin |
| 2 | Magnesium Stearate |
Capsule material: gelatin. The material classification follows the filed ingredient names; it is not a test of the shell.
This label lists magnesium stearate, whose reference elemental fraction is 4.1% by mass. No stearate quantity is available in this record as of 2026-09-13, so its magnesium contribution cannot be quantified or added to the Supplement Facts magnesium total.
Label declarations · observed
Target groups as filed
Bronson Potassium & Magnesium Aspartate has 1 target-group entries in NIH DSLD 9135, label dated 2012-06-01, examined 2026-09-13.
| Entry | Filed group |
|---|---|
| 1 | Adult (18 - 50 Years) |
Provenance · observed
Registry record, versions and scanned label
Bronson Potassium & Magnesium Aspartate is identified by 1 NIH DSLD record, 9135, according to the retained record examined 2026-09-13; the label date is 2012-06-01.
| NIH DSLD label | NIH DSLD 9135 |
|---|---|
| Registry snapshot | 2026-08-10 |
| Label date | 2012-06-01 |
| Physical state | Capsule |
| Barcode as filed | 7 16563 25101 7 |
| Calculation date | 2026-09-13 |
The barcode is retained as an identifier, not as proof of a retail match. A registry version count records the number held; it does not reveal what changed. The label date, registry snapshot and price-observation date describe different events.
Gaps in this record
What is not available for this label
Bronson Potassium & Magnesium Aspartate has 2 unresolved data gaps in the retained NIH DSLD and price records as of 2026-09-13.
| Entry | Known gap |
|---|---|
| 1 | No confirmed US retail price matched to NIH DSLD 9135 (barcode 7 16563 25101 7) as of 2026-09-13. |
| 2 | Servings per container are not filed; container magnesium and package duration cannot be computed as of 2026-09-13. |
An unmatched retail price describes our matching coverage. It does not establish that a product is unavailable. The elemental cost calculator can apply the same EC100 formula to a price you supply.