Label arithmetic · NIH DSLD 248974
BIOVEA Calcium-Magnesium
BIOVEA Calcium-Magnesium was observed at $14.99 on 2026-09-07, which is $0.04 per 100 mg of elemental magnesium; NIH DSLD 248974, label dated 2021-05-22, calculation 2026-09-13.
Mass budget · computed; capsule comparison · modelled
What the declared salt would weigh
BIOVEA Calcium-Magnesium declares 500 mg of elemental magnesium per serving in NIH DSLD 248974, requiring 828.91 mg of magnesium oxide under the salt model calculated 2026-09-13.
| Step | Value | Evidence |
|---|---|---|
| Declared elemental magnesium | 500 mg per serving | observed · label 2021-05-22 |
| Resolved salt | Magnesium oxide · label-row | computed · name resolved from filed text |
| Reference formula | MgO; 40.3 g/mol | computed · chemical reference |
| Elemental fraction | 60.32% by mass | computed |
| Compound mass per serving | 828.91 mg = 500 mg ÷ elemental fraction | computed |
| Compound mass per discrete unit | 276.3 mg | computed |
At powder density 0.6–0.8 g/mL, 276 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
BIOVEA Calcium-Magnesium has 14 published fields below, traced to NIH DSLD 248974 and the 2026-08-10 registry snapshot, with calculations dated 2026-09-13.
| Field | Value | Evidence tier |
|---|---|---|
| NIH DSLD identifier | 248974 | observed |
| Resolved salt | Magnesium oxide | computed |
| Source of the resolved salt | label-row | observed |
| Elemental magnesium per serving (mg) | 500 | observed |
| Servings per container | 83 | observed |
| Elemental magnesium per container (mg) | 41500 | computed |
| Compound mass per discrete unit | 276.3 mg | computed |
| Capsule fill verdict | fits-0 | modelled |
| Required standard capsule size | 0 | modelled |
| Label date | 2021-05-22 | observed |
| Retail match confidence | legacy-verified | computed |
| Observed container price (USD) | 14.99 | observed |
| Price observation date | 2026-09-07 | observed |
| Cost per 100 mg elemental (USD) | 0.0361 | 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
BIOVEA Calcium-Magnesium retains 1 magnesium-related rows in NIH DSLD 248974, including 1 rows selected for the primary serving, from label 2021-05-22, examined 2026-09-13.
| Filed amount | Serving order | Filed salt / notes | Calculation role |
|---|---|---|---|
| 500 mg | 1 | oxide Magnesium (Form: as Magnesium Oxide) | 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.
Within one salt · computed from observed prices
Cost per 100 mg within oxide
BIOVEA Calcium-Magnesium's $0.0361 per 100 mg of elemental magnesium is at percentile 43 among 14 oxide labels with observed prices, using confirmed gold-set matches observed 2026-08-10 to 2026-09-11, calculated 2026-09-13.
| Observed item price · Amazon | $14.99 on 2026-09-07 |
|---|---|
| Cost per 100 mg elemental | $0.0361 |
| Observed prices in oxide | 14 confirmed matches |
| Percentile | 43 |
| Match confidence | legacy-verified |
Percentile = 100 × the number of prices at or below this EC100 ÷ the number of observed prices in this salt, rounded to an integer. Ties receive the same percentile. The comparison includes this label; a high percentile means higher observed cost. Price is the dated item observation, excluding tax, shipping, coupons and subscriptions.
Package arithmetic · observed inputs, computed totals
What the package works out to
BIOVEA Calcium-Magnesium works out to 83 days per package at the label's own serving and filed frequency of 1 servings per day, according to label 2021-05-22, calculated 2026-09-13.
| Net contents as filed | 250 Vegetarian Capsule(s) |
|---|---|
| Discrete units in the package | 250 |
| Serving size as filed | 3 Vegetarian Capsule(s) |
| Units per serving | 3 |
| Servings per package | 83 |
| Daily servings in the label instructions | 1 |
| Days per package at the label's own serving | 83 days |
| Price per serving | $0.1806 · computed from price observed 2026-09-07 |
| Price per day at the label's own serving | $0.1806 · computed from price observed 2026-09-07 |
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
BIOVEA Calcium-Magnesium files 1 magnesium percent-daily-value entries in NIH DSLD 248974; the check below applies the group-specific references in 21 CFR 101.9 to its 500 mg primary serving, calculated 2026-09-13.
| Group as filed | Declared | Reference | Recomputed | Difference |
|---|---|---|---|---|
| Adults and children 4 or more years of age | 119% | 420 mg | 119% | 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
BIOVEA Calcium-Magnesium lists 3 other ingredients in NIH DSLD 248974, label dated 2021-05-22, examined 2026-09-13.
| Entry | Ingredient |
|---|---|
| 1 | Hydroxypropyl Methylcellulose |
| 2 | Vegetable Magnesium Stearate |
| 3 | Silicon Dioxide |
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
BIOVEA Calcium-Magnesium has 4 target-group entries in NIH DSLD 248974, label dated 2021-05-22, examined 2026-09-13.
| Entry | Filed group |
|---|---|
| 1 | Vegan |
| 2 | Vegetarian |
| 3 | Adult (18 - 50 Years) |
| 4 | Gluten Free |
Provenance · observed
Registry record, versions and scanned label
The registry holds 3 versions of this label for BIOVEA Calcium-Magnesium, according to the retained record examined 2026-09-13; the label date is 2021-05-22.
| NIH DSLD label | NIH DSLD 248974 |
|---|---|
| Registry snapshot | 2026-08-10 |
| Label date | 2021-05-22 |
| Physical state | Capsule |
| Barcode as filed | 8 18423 02124 9 |
| Versions held by the registry | 3; 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.