Label arithmetic · NIH DSLD 36425

Thompson Magnesium Malate 400 mg

Thompson Magnesium Malate 400 mg declares 400 mg of elemental magnesium per 2 Tablet(s); no US retail price has been matched; NIH DSLD 36425, label dated 2014-08-26, calculation 2026-09-13.

FDA recall records for Thompson: 6 · queried 2026-09-13; brand-string matches across products.

Mass budget · computed; capsule comparison · modelled

What the declared salt would weigh

Thompson Magnesium Malate 400 mg declares 400 mg of elemental magnesium per serving in NIH DSLD 36425, requiring 2,574–3,030.3 mg of magnesium malate under the salt model calculated 2026-09-13.

Elemental-to-compound conversion for NIH DSLD 36425
StepValueEvidence
Declared elemental magnesium400 mg per servingobserved · label 2014-08-26
Resolved saltMagnesium malate · label-rowcomputed · name resolved from filed text
Reference formulaMgC₄H₄O₅; 156.38 g/molcomputed · chemical reference
Elemental fraction13.2–15.54% by masscomputed
Why the fraction is a rangeanhydrous or dihydratemodelled · hydrate not specified
Compound mass per serving2,574–3,030.3 mg = 400 mg ÷ elemental fractioncomputed
Compound mass per discrete unit1,287–1,515.15 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

Thompson Magnesium Malate 400 mg has 11 published fields below, traced to NIH DSLD 36425 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 identifier36425observed
Resolved saltMagnesium malatecomputed
Source of the resolved saltlabel-rowobserved
Elemental magnesium per serving (mg)400observed
Servings per container60observed
Elemental magnesium per container (mg)24000computed
Compound mass per discrete unit1,287–1,515.15 mgcomputed
Capsule fill verdictnot-applicablemodelled
Required standard capsule sizeCapsule size not applicable or unresolved as of 2026-09-13modelled
Label date2014-08-26observed
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

Thompson Magnesium Malate 400 mg retains 1 magnesium-related rows in NIH DSLD 36425, including 1 rows selected for the primary serving, from label 2014-08-26, examined 2026-09-13.

Filed amounts, salt names and serving order
Filed amountServing orderFiled salt / notesCalculation role
400 mg1malate

Magnesium (Form: as Magnesium Malate)

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

Thompson Magnesium Malate 400 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 2014-08-26, calculated 2026-09-13.

Arithmetic using the label's own serving, not intake advice
Net contents as filed120 Tablet(s)
Discrete units in the package120
Serving size as filed2 Tablet(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.

Benchmark · 9 observed prices in malate

A same-salt reference for this package

At the median cost per 100 mg observed across 9 malate labels ($0.1142), a package of this size (24,000 mg elemental in Thompson Magnesium Malate 400 mg) would correspond to $27.41, using observations from 2026-08-10 to 2026-09-11, calculated 2026-09-13. This is a benchmark, not a retailer quote.

Same-salt benchmark working
Salt and number of observationsMagnesium malate · n = 9
Median observed cost per 100 mg$0.1142
Filed elemental magnesium per package24,000 mg
Benchmark package equivalent$27.41 = median EC100 × package elemental mg ÷ 100
Evidence tierbenchmark · calculated 2026-09-13

The median is the middle sorted observation, or the average of the two middle observations for an even group. Each label contributes one observation. This value is neither an offer nor an estimate of a specific retailer's current price.

Percent daily value · observed and computed

The label's percent daily value, recomputed

Thompson Magnesium Malate 400 mg files 1 magnesium percent-daily-value entries in NIH DSLD 36425; the check below applies the group-specific references in 21 CFR 101.9 to its 400 mg primary serving, calculated 2026-09-13.

Declared values and current-reference arithmetic
Group as filedDeclaredReferenceRecomputedDifference
Adults and children 4 or more years of age100%420 mg95%5 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

Thompson Magnesium Malate 400 mg lists 3 other ingredients in NIH DSLD 36425, label dated 2014-08-26, examined 2026-09-13.

Other ingredients as filed
EntryIngredient
1Cellulose
2Stearic Acid
3Silica

Capsule material: vegetarian. The material classification follows the filed ingredient names; it is not a test of the shell.

Label declarations · observed

Target groups as filed

Thompson Magnesium Malate 400 mg has 1 target-group entries in NIH DSLD 36425, label dated 2014-08-26, examined 2026-09-13.

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

Provenance · observed

Registry record, versions and scanned label

Thompson Magnesium Malate 400 mg is identified by 1 NIH DSLD record, 36425, according to the retained record examined 2026-09-13; the label date is 2014-08-26.

Source record for Thompson Magnesium Malate 400 mg
NIH DSLD labelNIH DSLD 36425
Registry snapshot2026-08-10
Label date2014-08-26
Physical stateTablet or Pill
Barcode as filed0 31315 19159 6
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

Thompson Magnesium Malate 400 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 36425 (barcode 0 31315 19159 6) 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.