Label arithmetic · NIH DSLD 255079

KAL Magnesium Glycinate 400

KAL Magnesium Glycinate 400 declares 400 mg of elemental magnesium per serving as glycinate, which would require 1,418–1,691 mg of the salt in each unit — more than the 1,100 mg a size 000 capsule holds; NIH DSLD 255079, label dated 2021-08-23, calculation 2026-09-13.

Mass budget · computed; capsule comparison · modelled

What the declared salt would weigh

KAL Magnesium Glycinate 400 declares 400 mg of elemental magnesium per serving in NIH DSLD 255079, requiring 2,836.88–3,381.23 mg of magnesium glycinate under the salt model calculated 2026-09-13.

Elemental-to-compound conversion for NIH DSLD 255079
StepValueEvidence
Declared elemental magnesium400 mg per servingobserved · label 2021-08-23
Resolved saltMagnesium glycinate · label-rowcomputed · name resolved from filed text
Reference formulaMg(C₂H₄NO₂)₂; 172.42 g/molcomputed · chemical reference
Elemental fraction11.83–14.1% by masscomputed
Why the fraction is a rangebisglycinate; chelate hydration varies by suppliermodelled · hydrate not specified
Compound mass per serving2,836.88–3,381.23 mg = 400 mg ÷ elemental fractioncomputed
Compound mass per discrete unit1,418.44–1,690.62 mgcomputed

At powder density 0.6–0.8 g/mL, 1,418 mg of powder exceeds every standard capsule size — the largest, 000, holds about 1,100 mg.

If the declared salt were the sole source of magnesium here, each capsule would need 1,418 mg of powder, which no standard capsule holds. So the label does not establish glycinate as the only source. A blend with a denser salt or a non-standard capsule could reconcile it. This is a statement about the label's arithmetic, not about what is in the bottle.

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

KAL Magnesium Glycinate 400 has 14 published fields below, traced to NIH DSLD 255079 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 identifier255079observed
Resolved saltMagnesium glycinatecomputed
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 unit1,418.44–1,690.62 mgcomputed
Capsule fill verdictexceeds-allmodelled
Required standard capsule sizeNo standard size fits as of 2026-09-13modelled
Label date2021-08-23observed
Retail match confidencelegacy-verifiedcomputed
Observed container price (USD)16.99observed
Price observation date2026-09-07observed
Cost per 100 mg elemental (USD)0.0708computed

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

KAL Magnesium Glycinate 400 retains 1 magnesium-related rows in NIH DSLD 255079, including 1 rows selected for the primary serving, from label 2021-08-23, examined 2026-09-13.

Filed amounts, salt names and serving order
Filed amountServing orderFiled salt / notesCalculation role
400 mg1glycinate

Magnesium (Form: as Magnesium Glycinate)

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

KAL Magnesium Glycinate 400's $0.0708 per 100 mg of elemental magnesium is at percentile 20 among 20 glycinate labels with observed prices, using confirmed gold-set matches observed 2026-08-10 to 2026-09-11, calculated 2026-09-13.

Price and comparison within glycinate
Observed item price · Amazon$16.99 on 2026-09-07
Cost per 100 mg elemental$0.0708
Observed prices in glycinate20 confirmed matches
Percentile20
Match confidencelegacy-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

KAL Magnesium Glycinate 400 works out to 60 days per package at the label's own serving and filed frequency of 1 servings per day, according to label 2021-08-23, calculated 2026-09-13.

Arithmetic using the label's own serving, not intake advice
Net contents as filed120 Softgel(s)
Discrete units in the package120
Serving size as filed2 Softgel(s)
Units per serving2
Servings per package60
Daily servings in the label instructions1
Days per package at the label's own serving60 days
Price per serving$0.2832 · computed from price observed 2026-09-07
Price per day at the label's own serving$0.2832 · 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

KAL Magnesium Glycinate 400 files 1 magnesium percent-daily-value entries in NIH DSLD 255079; 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 age95%420 mg95%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

KAL Magnesium Glycinate 400 lists 7 other ingredients in NIH DSLD 255079, label dated 2021-08-23, examined 2026-09-13.

Other ingredients as filed
EntryIngredient
1Rice Bran Oil
2Gelatin
3Glycerin
4Beeswax
5Water
6Lecithin
7Calcium Carbonate

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

Label declarations · observed

Target groups as filed

KAL Magnesium Glycinate 400 has 1 target-group entries in NIH DSLD 255079, label dated 2021-08-23, examined 2026-09-13.

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

Provenance · observed

Registry record, versions and scanned label

KAL Magnesium Glycinate 400 is identified by 1 NIH DSLD record, 255079, according to the retained record examined 2026-09-13; the label date is 2021-08-23.

Source record for KAL Magnesium Glycinate 400
NIH DSLD labelNIH DSLD 255079
Registry snapshot2026-08-10
Label date2021-08-23
Physical stateSoftgel Capsule
Barcode as filed0 21245 28185 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.