Label arithmetic · NIH DSLD 329643
BulkSupplements.com Magnesium Glycinate Powder
BulkSupplements.com Magnesium Glycinate Powder was observed at $19.96 on 2026-09-11, which is $0.01 per 100 mg of elemental magnesium; NIH DSLD 329643, label dated 2025-04-24, calculation 2026-09-13.
FDA recall records for BulkSupplements.com: 2 · queried 2026-09-13; brand-string matches across products.
Mass budget · computed; capsule comparison · modelled
What the declared salt would weigh
BulkSupplements.com Magnesium Glycinate Powder declares 400 mg of elemental magnesium per serving in NIH DSLD 329643, requiring 2,836.88–3,381.23 mg of magnesium glycinate under the salt model calculated 2026-09-13.
| Step | Value | Evidence |
|---|---|---|
| Declared elemental magnesium | 400 mg per serving | observed · label 2025-04-24 |
| Resolved salt | Magnesium glycinate · full-record | computed · name resolved from filed text |
| Reference formula | Mg(C₂H₄NO₂)₂; 172.42 g/mol | computed · chemical reference |
| Elemental fraction | 11.83–14.1% by mass | computed |
| Why the fraction is a range | bisglycinate; chelate hydration varies by supplier | modelled · hydrate not specified |
| Compound mass per serving | 2,836.88–3,381.23 mg = 400 mg ÷ elemental fraction | computed |
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
BulkSupplements.com Magnesium Glycinate Powder has 14 published fields below, traced to NIH DSLD 329643 and the 2026-08-10 registry snapshot, with calculations dated 2026-09-13.
| Field | Value | Evidence tier |
|---|---|---|
| NIH DSLD identifier | 329643 | observed |
| Resolved salt | Magnesium glycinate | computed |
| Source of the resolved salt | full-record | observed |
| Elemental magnesium per serving (mg) | 400 | observed |
| Servings per container | 454 | observed |
| Elemental magnesium per container (mg) | 181600 | computed |
| Compound mass per discrete unit | Discrete unit mass not computable as of 2026-09-13 | computed |
| Capsule fill verdict | not-applicable | modelled |
| Required standard capsule size | Capsule size not applicable or unresolved as of 2026-09-13 | modelled |
| Label date | 2025-04-24 | observed |
| Retail match confidence | confirmed | computed |
| Observed container price (USD) | 19.96 | observed |
| Price observation date | 2026-09-11 | observed |
| Cost per 100 mg elemental (USD) | 0.011 | 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
BulkSupplements.com Magnesium Glycinate Powder retains 1 magnesium-related rows in NIH DSLD 329643, including 1 rows selected for the primary serving, from label 2025-04-24, examined 2026-09-13.
| Filed amount | Serving order | Filed salt / notes | Calculation role |
|---|---|---|---|
| 400 mg | 1 | Salt not identified in this row as of 2026-09-13 | 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 glycinate
BulkSupplements.com Magnesium Glycinate Powder's $0.0110 per 100 mg of elemental magnesium is at percentile 5 among 20 glycinate 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 | $19.96 on 2026-09-11 |
|---|---|
| Cost per 100 mg elemental | $0.0110 |
| Observed prices in glycinate | 20 confirmed matches |
| Percentile | 5 |
| Match confidence | confirmed |
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
BulkSupplements.com Magnesium Glycinate Powder works out to 227–454 days per package at the label's own serving and filed frequency of 1–2 servings per day, according to label 2025-04-24, calculated 2026-09-13.
| Net contents as filed | 1 Kilogram(s); 35.3 Ounce(s) |
|---|---|
| Serving size as filed | 2200 mg (about 4/5 tsp) |
| Servings per package | 454 |
| Daily servings in the label instructions | 1–2 |
| Days per package at the label's own serving | 227–454 days |
| Price per serving | $0.0440 · computed from price observed 2026-09-11 |
| Price per day at the label's own serving | $0.044–0.0879 · computed from price observed 2026-09-11 |
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
BulkSupplements.com Magnesium Glycinate Powder files 1 magnesium percent-daily-value entries in NIH DSLD 329643; the check below applies the group-specific references in 21 CFR 101.9 to its 400 mg primary serving, calculated 2026-09-13.
| Group as filed | Declared | Reference | Recomputed | Difference |
|---|---|---|---|---|
| Adults and children 4 or more years of age | 95% | 420 mg | 95% | 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.
Label declarations · observed
Target groups as filed
BulkSupplements.com Magnesium Glycinate Powder has 4 target-group entries in NIH DSLD 329643, label dated 2025-04-24, examined 2026-09-13.
| Entry | Filed group |
|---|---|
| 1 | Adult (18 - 50 Years) |
| 2 | Gluten Free |
| 3 | Dairy Free |
| 4 | Sugar Free |
Provenance · observed
Registry record, versions and scanned label
The registry holds 12 versions of this label for BulkSupplements.com Magnesium Glycinate Powder, according to the retained record examined 2026-09-13; the label date is 2025-04-24.
| NIH DSLD label | NIH DSLD 329643 |
|---|---|
| Registry snapshot | 2026-08-10 |
| Label date | 2025-04-24 |
| Physical state | Powder |
| Barcode as filed | X000HUGPKD |
| Versions held by the registry | 12; version details are not available in this enrichment record as of 2026-09-13 |
| Source scan | Scanned label (NIH DSLD) |
| 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
BulkSupplements.com Magnesium Glycinate Powder has 1 unresolved data gaps in the retained NIH DSLD and price records as of 2026-09-13.
| Entry | Known gap |
|---|---|
| 1 | Other ingredients are not present in the filed record 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.