Label arithmetic · NIH DSLD 336938

tnvitamins Magnesium Citrate 800 mg

tnvitamins Magnesium Citrate 800 mg declares more than one magnesium amount for a single serving; no US retail price has been matched; NIH DSLD 336938, label dated 2025-08-22, calculation 2026-09-13.

FDA recall records for tnvitamins: 2 · queried 2026-09-13; brand-string matches across products.

Label facts and derived measurements

The numbers for this label

tnvitamins Magnesium Citrate 800 mg has 11 published fields below, traced to NIH DSLD 336938 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 identifier336938observed
Resolved saltMagnesium citratecomputed
Source of the resolved saltfull-recordobserved
Elemental magnesium per serving (mg)Filed magnesium amounts ambiguous as of 2026-09-13observed
Servings per container60observed
Elemental magnesium per container (mg)Container magnesium not computable as of 2026-09-13computed
Compound mass per discrete unitDiscrete unit mass not computable as of 2026-09-13computed
Capsule fill verdictMass budget unavailable as of 2026-09-13modelled
Required standard capsule sizeCapsule size not applicable or unresolved as of 2026-09-13modelled
Label date2025-08-22observed
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

tnvitamins Magnesium Citrate 800 mg retains 2 magnesium-related rows in NIH DSLD 336938, including 2 rows selected for the primary serving, from label 2025-08-22, examined 2026-09-13.

Filed amounts, salt names and serving order
Filed amountServing orderFiled salt / notesCalculation role
800 mg1Salt not identified in this row as of 2026-09-13Selected primary serving
128 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

tnvitamins Magnesium Citrate 800 mg works out to 60 days per package at the label's own serving and filed frequency of 1 servings per day, according to label 2025-08-22, calculated 2026-09-13.

Arithmetic using the label's own serving, not intake advice
Net contents as filed120 Capsule(s)
Discrete units in the package120
Serving size as filed2 Capsule(s)
Units per serving2
Servings per package60
Daily servings in the label instructions1
Days per package at the label's own serving60 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.

Composition · observed

Other ingredients in the filed record

tnvitamins Magnesium Citrate 800 mg lists 3 other ingredients in NIH DSLD 336938, label dated 2025-08-22, examined 2026-09-13.

Other ingredients as filed
EntryIngredient
1Microcrystalline Cellulose
2Magnesium Stearate
3Gelatin

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

tnvitamins Magnesium Citrate 800 mg has 4 target-group entries in NIH DSLD 336938, label dated 2025-08-22, examined 2026-09-13.

Manufacturer-filed target groups
EntryFiled group
1Adult (18 - 50 Years)
2Gluten Free
3Dairy Free
4Sugar Free

Provenance · observed

Registry record, versions and scanned label

tnvitamins Magnesium Citrate 800 mg is identified by 1 NIH DSLD record, 336938, according to the retained record examined 2026-09-13; the label date is 2025-08-22.

Source record for tnvitamins Magnesium Citrate 800 mg
NIH DSLD labelNIH DSLD 336938
Registry snapshot2026-08-10
Label date2025-08-22
Physical stateCapsule
Barcode as filedX0040F5M91
Source scanScanned label (NIH DSLD)
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

tnvitamins Magnesium Citrate 800 mg 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 336938 (barcode X0040F5M91) 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.