Label arithmetic · NIH DSLD 201597
Solgar Potassium Magnesium Aspartate
Solgar Potassium Magnesium Aspartate declares 20 mg of elemental magnesium as aspartate, which needs 238 mg of salt per unit and fits a standard size 0 capsule; NIH DSLD 201597, label dated 2019-04-25, calculation 2026-09-13.
FDA recall records for Solgar: 2 · queried 2026-09-13; brand-string matches across products.
Mass budget · computed; capsule comparison · modelled
What the declared salt would weigh
Solgar Potassium Magnesium Aspartate declares 20 mg of elemental magnesium per serving in NIH DSLD 201597, requiring 237.53 mg of magnesium aspartate under the salt model calculated 2026-09-13.
| Step | Value | Evidence |
|---|---|---|
| Declared elemental magnesium | 20 mg per serving | observed · label 2019-04-25 |
| 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 | 237.53 mg = 20 mg ÷ elemental fraction | computed |
| Compound mass per discrete unit | 237.53 mg | computed |
At powder density 0.6–0.8 g/mL, 238 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
Solgar Potassium Magnesium Aspartate has 11 published fields below, traced to NIH DSLD 201597 and the 2026-08-10 registry snapshot, with calculations dated 2026-09-13.
| Field | Value | Evidence tier |
|---|---|---|
| NIH DSLD identifier | 201597 | observed |
| Resolved salt | Magnesium aspartate | computed |
| Source of the resolved salt | label-row | observed |
| Elemental magnesium per serving (mg) | 20 | 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 | 237.53 mg | computed |
| Capsule fill verdict | fits-0 | modelled |
| Required standard capsule size | 0 | modelled |
| Label date | 2019-04-25 | 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
Solgar Potassium Magnesium Aspartate retains 1 magnesium-related rows in NIH DSLD 201597, including 1 rows selected for the primary serving, from label 2019-04-25, examined 2026-09-13.
| Filed amount | Serving order | Filed salt / notes | Calculation role |
|---|---|---|---|
| 20 mg | 1 | aspartate Magnesium (Form: as Magnesium Aspartate) | 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
Solgar Potassium Magnesium Aspartate has no filed serving count for package arithmetic in NIH DSLD 201597, according to label 2019-04-25, calculated 2026-09-13.
| Net contents as filed | 90 Vegetable Capsule(s) |
|---|---|
| Discrete units in the package | 90 |
| Serving size as filed | 1 Vegetable Capsule(s) |
| Units per serving | 1 |
| Servings per package | Servings not filed as of 2026-09-13 |
| Daily servings in the label instructions | 2–4 |
| 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
Solgar Potassium Magnesium Aspartate files 1 magnesium percent-daily-value entries in NIH DSLD 201597; the check below applies the group-specific references in 21 CFR 101.9 to its 20 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
Solgar Potassium Magnesium Aspartate lists 5 other ingredients in NIH DSLD 201597, label dated 2019-04-25, examined 2026-09-13.
| Entry | Ingredient |
|---|---|
| 1 | Microcrystalline Cellulose |
| 2 | Vegetable Cellulose |
| 3 | Stearic Acid |
| 4 | Vegetable Magnesium Stearate |
| 5 | Silica |
Capsule material: vegetarian. 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
Solgar Potassium Magnesium Aspartate has 7 target-group entries in NIH DSLD 201597, label dated 2019-04-25, examined 2026-09-13.
| Entry | Filed group |
|---|---|
| 1 | Vegan |
| 2 | Vegetarian |
| 3 | Adult (18 - 50 Years) |
| 4 | Kosher |
| 5 | Gluten Free |
| 6 | Dairy Free |
| 7 | Sugar Free |
Provenance · observed
Registry record, versions and scanned label
The registry holds 5 versions of this label for Solgar Potassium Magnesium Aspartate, according to the retained record examined 2026-09-13; the label date is 2019-04-25.
| NIH DSLD label | NIH DSLD 201597 |
|---|---|
| Registry snapshot | 2026-08-10 |
| Label date | 2019-04-25 |
| Physical state | Capsule |
| Barcode as filed | 0 33984 02267 6 |
| Versions held by the registry | 5; version details are not available in this enrichment record as of 2026-09-13 |
| 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
Solgar 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 201597 (barcode 0 33984 02267 6) 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.