Label arithmetic · NIH DSLD 256377

Wonder Laboratories Magnesium

Wonder Laboratories Magnesium declares 133 mg of elemental magnesium per 1 Tablet(s); no US retail price has been matched; NIH DSLD 256377, label dated 2021-10-22, calculation 2026-09-13.

Mass budget · computed; capsule comparison · modelled

What the declared salt would weigh

Wonder Laboratories Magnesium declares 133 mg of elemental magnesium per serving in NIH DSLD 256377, requiring 461.33–536.72 mg of magnesium carbonate under the salt model calculated 2026-09-13.

Elemental-to-compound conversion for NIH DSLD 256377
StepValueEvidence
Declared elemental magnesium133 mg per servingobserved · label 2021-10-22
Resolved saltMagnesium carbonate · full-recordcomputed · name resolved from filed text
Reference formulaMgCO₃; 84.31 g/molcomputed · chemical reference
Elemental fraction24.78–28.83% by masscomputed
Why the fraction is a rangeanhydrous or hydrated; labels rarely state whichmodelled · hydrate not specified
Compound mass per serving461.33–536.72 mg = 133 mg ÷ elemental fractioncomputed
Compound mass per discrete unit461.33–536.72 mgcomputed

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

Wonder Laboratories Magnesium has 11 published fields below, traced to NIH DSLD 256377 and the 2026-08-10 registry snapshot, with calculations dated 2026-09-13.

Values published in this page's Product metadata
FieldValueEvidence tier
NIH DSLD identifier256377observed
Resolved saltMagnesium carbonatecomputed
Source of the resolved saltfull-recordobserved
Elemental magnesium per serving (mg)133observed
Servings per container250observed
Elemental magnesium per container (mg)33250computed
Compound mass per discrete unit461.33–536.72 mgcomputed
Capsule fill verdictnot-applicablemodelled
Required standard capsule sizeCapsule size not applicable or unresolved as of 2026-09-13modelled
Label date2021-10-22observed
Retail match confidenceunmatchedcomputed

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

Wonder Laboratories Magnesium retains 1 magnesium-related rows in NIH DSLD 256377, including 1 rows selected for the primary serving, from label 2021-10-22, examined 2026-09-13.

Filed amounts, salt names and serving order
Filed amountServing orderFiled salt / notesCalculation role
133 mg1Salt not identified in this row as of 2026-09-13Selected 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

Wonder Laboratories Magnesium works out to 83.33–250 days per package at the label's own serving and filed frequency of 1–3 servings per day, according to label 2021-10-22, calculated 2026-09-13.

Arithmetic using the label's own serving, not intake advice
Net contents as filed250 Tablet(s)
Discrete units in the package250
Serving size as filed1 Tablet(s)
Units per serving1
Servings per package250
Daily servings in the label instructions1–3
Days per package at the label's own serving83.33–250 days

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

Wonder Laboratories Magnesium files 1 magnesium percent-daily-value entries in NIH DSLD 256377; the check below applies the group-specific references in 21 CFR 101.9 to its 133 mg primary serving, calculated 2026-09-13.

Declared values and current-reference arithmetic
Group as filedDeclaredReferenceRecomputedDifference
Adults and children 4 or more years of age32%420 mg32%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

Wonder Laboratories Magnesium lists 6 other ingredients in NIH DSLD 256377, label dated 2021-10-22, examined 2026-09-13.

Other ingredients as filed
EntryIngredient
1Vegetable Cellulose
2L-Glycine
3Vegetable Magnesium Silicate
4Stearic Acid
5Silica
6Vegetable Magnesium Stearate

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

Wonder Laboratories Magnesium has 2 target-group entries in NIH DSLD 256377, label dated 2021-10-22, examined 2026-09-13.

Manufacturer-filed target groups
EntryFiled group
1Adult (18 - 50 Years)
2Gluten Free

Provenance · observed

Registry record, versions and scanned label

The registry holds 10 versions of this label for Wonder Laboratories Magnesium, according to the retained record examined 2026-09-13; the label date is 2021-10-22.

Source record for Wonder Laboratories Magnesium
NIH DSLD labelNIH DSLD 256377
Registry snapshot2026-08-10
Label date2021-10-22
Physical stateTablet or Pill
Barcode as filed0 99528 13825 8
Versions held by the registry10; version details are not available in this enrichment record as of 2026-09-13
Calculation date2026-09-13

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

Wonder Laboratories Magnesium has 1 unresolved data gaps in the retained NIH DSLD and price records as of 2026-09-13.

Dated missing-data statements
EntryKnown gap
1No confirmed US retail price matched to NIH DSLD 256377 (barcode 0 99528 13825 8) 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.