Label arithmetic · NIH DSLD 304961
Vital Nutrients Calcium/Magnesium (Citrate/Malate Formula): 80 mg of magnesium per capsule, 4–8 capsules a day – citrate + malate
80 mg of magnesium per capsule; the label's 4–8 capsules a day give 320–640 mg. From citrate + malate. Inside: label lines, ingredients.
Vital Nutrients Calcium/Magnesium (Citrate/Malate Formula) declares 160 mg of elemental magnesium per 2 vegetarian capsule(s); the magnesium salt is not resolved from the filed record, Single-salt capacity audit excluded as of 2026-10-17: one salt with a defined elemental fraction is not resolved., as of 2026-11-02. No US retail price matched as of 2026-11-02. NIH DSLD 304961, label dated 2024-01-24.
as filedData release 2026-08-10-f441aa9f · registry snapshot 2026-08-10 · latest price observation 2026-10-19 · chemistry 2026-10-17
Mass: not computable · Price: none matched · % DV: 38% vs 38%
Elemental: The magnesium itself; the rest of the compound weight is the partner molecule.
Compound: The whole salt, such as magnesium glycinate, that must physically fit in the capsule.
Size 000: The largest standard capsule, about 1,100 mg of powder at 0.8 g/mL, the top of the usual 0.6–0.8 range; size 00 holds about 730 mg and size 0 about 545 mg.
Recompute with your price
Enter the price you paid; the declared amount and servings of this label are prefilled, so the result is the cost per 100 mg of elemental magnesium for your bottle.
Same-salt comparison appears here.
Will 160 mg of magnesium actually fit in one capsule, or do I need more than one?
The compound mass behind this label cannot be computed as of 2026-11-02: Single-salt capacity audit excluded as of 2026-10-17: one salt with a defined elemental fraction is not resolved.. The filed amounts are listed in the next block. Lower bound, not a measurement: even if all 160 mg of magnesium per serving came from dimagnesium malate (27.2% magnesium), the richest of the 2 forms named for magnesium on the label, each of the 2 capsules would need at least 294 mg of compound, so at this bound it needs at least a size 0 capsule (about 545 mg at 0.8 g/mL); the actual mix of forms may need more.
computed with assumption| Measure | Value |
|---|---|
| Elemental magnesium per serving | 160 mg |
| Units per serving | 2 |
| Magnesium salt per serving | Not computable as of 2026-11-02 |
| Magnesium salt per capsule | Not computable as of 2026-11-02 |
| Capsule capacity 0 · 00 · 000 | 545 · 730 · 1,100 mg |
| Verdict | Not computable as of 2026-11-02 |
Source · NIH DSLD 304961 · label 2024-01-24; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
How much elemental magnesium is actually in this label's filed magnesium lines?
Vital Nutrients Calcium/Magnesium (Citrate/Malate Formula) files 1 magnesium line in NIH DSLD 304961; the selected primary line declares 160 mg of elemental magnesium per serving, against 0 other rows excluded from the primary amount. A salt named under another nutrient does not turn that nutrient's quantity into elemental magnesium.
measured| Filed amount | Salt or note as filed | Role |
|---|---|---|
| 160 mg | citrate, malate · 70% dimagnesium malate and 30% magnesium citrate | Primary serving |
Source · NIH DSLD 304961 · label 2024-01-24; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
Does this label's magnesium claim hold up, or could the magnesium come from another source?
The label names 2 magnesium forms (citrate, malate); a named blend does not establish how much magnesium each form contributes, so the resolved reading is the most favourable one, compared with oxide, the salt richest in magnesium at 60.3%.
computed with assumption| Form named on the label | Elemental fraction | Source |
|---|---|---|
| Magnesium citrate | 11.3–16.2% | named on label |
| Magnesium malate | 12.6–15.5% | named on label |
Source · NIH DSLD 304961 · label 2024-01-24; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
Is this a good price for the elemental magnesium I'm actually getting?
No US retail price is matched to this label as of 2026-11-02, and without a resolved salt there is no same-salt comparison.
computed| Rank | Label | Per 100 mg | Observed |
|---|
Source · Amazon via licensed data provider; NIH DSLD · unique ASIN × date; prices observed 2026-10-26 to 2026-11-02 · release 2026-08-10-f441aa9f · CSV · method
How many days will this bottle last at the label's own serving, and what does a day cost?
At the label's own serving, Vital Nutrients Calcium/Magnesium (Citrate/Malate Formula) lasts 13–25 days: 50 servings against 2–4 servings a day in the filed directions.
computed| Measure | Value |
|---|---|
| Net contents as filed | 100 Vegetarian Capsule(s) |
| Serving size as filed | 2 Vegetarian Capsule(s) |
| Servings per container | 50 |
| Servings per day in the directions | 2–4 |
| Days per bottle | 13–25 days |
| $ per 30 days at one label serving a day | No ranked price as of 2026-11-02 |
| $ per 30 days at 420 mg Daily Value | No ranked price as of 2026-11-02 |
Source · NIH DSLD 304961 · label 2024-01-24; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
What does "38% Daily Value" mean here, and does it recompute?
The label declares 38% Daily Value; 160 mg against the 420 mg reference in 21 CFR 101.9 recomputes to 38%, the same within one point.
computed| Group as filed | Declared | Reference | Recomputed |
|---|---|---|---|
| Adults and children 4 or more years of age | 38% | 420 mg | 38% |
Source · NIH DSLD 304961; 21 CFR 101.9 · label 2024-01-24 · release 2026-08-10-f441aa9f · CSV · method
Why does this label contain these other ingredients, what shell is it, and who is it filed for?
Vital Nutrients Calcium/Magnesium (Citrate/Malate Formula) files 3 other ingredients and a vegetarian shell.
measured| Entry | Filed ingredient or declaration |
|---|---|
| 1 | Cellulose |
| 2 | Magnesium Silicate |
| 3 | Leucine |
| Shell | vegetarian |
| Target group | Adult (18 - 50 Years) |
| Target group | Gluten Free |
| Target group | Dairy Free |
| Target group | Sugar Free |
Source · NIH DSLD 304961 · label 2024-01-24; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
What has research measured about this form, and about side effects?
No study in the registry measured an unresolved salt as of 2026-11-02.
measured| Year | Study | PubMed |
|---|
Source · PubMed-checked study registry · registry checked 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
Has this brand had FDA recalls or adverse event reports?
Vital Nutrients has 1 FDA recall record matched by brand name in the enforcement data queried 2026-10-19. Vital Nutrients has FDA CAERS adverse event reports on record at brand level, as do 143 of 273 brands in this registry; openFDA states that “there is no certainty that the reported event (adverse event) was actually due to the product” and that reports “cannot be used to estimate the incidence of these events.”
measured| Recall | Date | Reason | Status |
|---|---|---|---|
| H-0663-2026 | 2026-04-15 | Contains undeclared egg, soy, and hazelnut | Ongoing |
Source · openFDA enforcement and CAERS · queried 2026-10-19 · release 2026-08-10-f441aa9f · CSV · method
Is this the same formula as another brand's, and how do their prices differ?
No other brand files the same formulation (ingredients, shell, units and rounded amount) as of 2026-11-02.
computed| Label | Brand | Price per 100 mg |
|---|---|---|
| No cross-brand match as of 2026-11-02 |
Source · NIH DSLD 304961 · label 2024-01-24; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
Which labels are closest to this one, with the same salt and dose?
No other label files the same resolved salt within ±10% of this label's dose per unit as of 2026-11-02.
computed| Label | Elemental per unit | Price | Verdict |
|---|---|---|---|
| No neighbour as of 2026-11-02 |
Source · NIH DSLD 304961 · label 2024-01-24; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
Where does this record come from, what is missing, and how do I cite or correct it?
Every value on this page traces to NIH DSLD 304961 (label 2024-01-24, snapshot 2026-08-10) and the chemistry model of 2026-09-13. 3 gaps remain: Single-salt capacity audit excluded as of 2026-10-17: one salt with a defined elemental fraction is not resolved.; No US retail price matched as of 2026-11-02 (barcode 6 93465 30211 8); A single salt with a defined elemental fraction is unresolved as of 2026-11-02. The CSV carries the values shown here.
measured| Field | As filed |
|---|---|
| NIH DSLD label | NIH DSLD 304961 |
| Scanned label (PDF) | Label 304961 scan |
| Label date | 2024-01-24 |
| Date entered into DSLD | 2024-01-24 |
| Barcode (UPC) as filed | 6 93465 30211 8 |
| Label version · Image difference, same product | NIH DSLD 3291 |
| Label version · Image difference, same product | NIH DSLD 89211 |
| Label version · Image difference, same product | NIH DSLD 6943 |
19 additional rows
| Field | As filed |
|---|---|
| Label version · Image difference, same product | NIH DSLD 182217 |
| Label version · Image difference, same product | NIH DSLD 208344 |
| Label version · Image difference, same product | NIH DSLD 223231 |
| Manufactured by | Vital Nutrients, Middletown, CT, USA |
| Claim category as filed | Nutrient |
| Claim category as filed | All Other |
| Storage | Store sealed in a cool dry place |
| Precautions re: Children | Keep out of reach of children |
| Precautions re: All Other | Use only if safety seal is intact |
| Suggested/Recommended/Usage/Directions | Recommendations 2 capsules 2-4 times daily with food, or as directed by your healthcare professional. |
| Precautions re: Pregnant or Nursing or Prescription Medications | Warning If pregnant, consult your physician before taking. |
| Formulation re: Does NOT Contain | Excludes coatings, binders, gluten (wheat, rye, barley), milk/dairy (casein, whey), soy protein, egg protein, sugar. Verified by independent testing |
| Formula re: Contains | Albion Minerals |
| Brand IP Statement(s) re: (c), (TM), (SM) | Albion Minerals is a trademark of Albion Laboratories, Inc. |
| Formulation re: Other | Raw materials and finished products are independently tested by U.S. labs. |
| General Statements: All Other Content | Learn more at vitalnutrients.net |
| FDA Statement of Identity | Dietary Supplement |
| Physical state | Capsule |
| Registry snapshot | 2026-08-10 |
Source · NIH DSLD 304961 · label 2024-01-24; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
6 brand pages linked below contain magnesium labels from the NIH DSLD registry snapshot dated 2026-08-10.