Label arithmetic · NIH DSLD 329887
BulkSupplements.com Magnesium Malate Capsules 400 mg: 100 mg of magnesium per capsule, 4 capsules a day, $9.98 a month
100 mg of magnesium per capsule; the label's 4 capsules a day cost $9.98 a month (Amazon, Nov 2). Inside: salt weight, capsule size, price rank.
BulkSupplements.com Magnesium Malate Capsules 400 mg declares 400 mg of elemental magnesium per serving as malate, which needs 644–792 mg of magnesium malate in each capsule, against 730 mg in a size 00 capsule at powder density 0.8 g/mL, the top of the usual 0.6–0.8 range: it needs size 00 or larger. Observed at $0.0832 per 100 mg, rank 2 of 4 ranked malate offers; a percentile is given from 5 offers. NIH DSLD 329887, label dated 2025-02-23.
computed from the filed label
Chart data
| Displayed chart text |
|---|
| 545 mg |
| 730 mg |
| 1,100 mg |
| 644–792 mg of malate per capsule |
Data release 2026-08-10-f441aa9f · registry snapshot 2026-08-10 · latest price observation 2026-11-02 · chemistry 2026-10-17
Mass: 644–792 mg per capsule · Price: $0.0832 per 100 mg · % DV: 95% vs 95%
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 400 mg of malate actually fit in one capsule, or do I need more than one?
Estimated salt mass versus assumed capsule capacity: BulkSupplements.com Magnesium Malate Capsules 400 mg implies 644–792 mg of magnesium malate in each capsule to deliver 400 mg of elemental magnesium, against 1,100 mg in the largest standard capsule (size 000) at powder density 0.8 g/mL, the top of the usual 0.6–0.8 range. Verdict: needs size 00, read at the most favourable hydration and the most units per serving.
computed with assumption| Measure | Value |
|---|---|
| Elemental magnesium per serving | 400 mg |
| Units per serving | 4 |
| Magnesium malate per serving | 2,574–3,167 mg |
| Magnesium malate per capsule | 644–792 mg |
| Capsule capacity 0 · 00 · 000 | 545 · 730 · 1,100 mg |
| Verdict | Needs size 00 |
The filed salt can have more than one hydration state (anhydrous 15.54% or dihydrate 12.63% (192.41 g/mol)), so the compound mass is a range.
Source · NIH DSLD 329887 · label 2025-02-23; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
How much elemental magnesium is actually in this label's filed magnesium lines?
BulkSupplements.com Magnesium Malate Capsules 400 mg files 1 magnesium line in NIH DSLD 329887; the selected primary line declares 400 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 |
|---|---|---|
| 400 mg | Salt not named in this row; magnesium malate is taken from the label text | Primary serving |
Source · NIH DSLD 329887 · label 2025-02-23; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
Does this label's malate claim hold up, or could the magnesium come from another source?
The label names one magnesium form, malate, resolved from the full NIH DSLD record text; at that salt the declaration is within the assumed size 000 capacity at powder density 0.8 g/mL, compared with oxide, the salt richest in magnesium at 60.3%.
computed with assumption| Form named on the label | Elemental fraction | Source |
|---|---|---|
| Magnesium malate | 12.6–15.5% | full NIH DSLD record text |
Source · NIH DSLD 329887 · label 2025-02-23; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
Is this a good price for the elemental magnesium I'm actually getting?
BulkSupplements.com Magnesium Malate Capsules 400 mg costs $0.0832 per 100 mg of elemental magnesium at the price observed 2026-11-02, rank 2 of 4 ranked malate offers; a percentile is given from 5 offers, against a same-salt median of $0.1052; prices observed 2026-10-26 to 2026-11-02. First observed 2026-10-26 at $19.96, latest 2026-11-02 at $19.96, 2 observations.
computed
Chart data
| Displayed chart text |
|---|
| n=4, band unstable |
| P25 $0.0739 |
| P75 $0.1402 |
| median $0.1052 |
| Rank | Label | Per 100 mg | Observed |
|---|---|---|---|
| 1 | Seeking Health Magnesium Malate 500 mg | $0.0460 | 2026-11-02 |
| 2 | BulkSupplements.com Magnesium Malate Capsules 400 mg | $0.0832 | 2026-11-02 |
| 3 | Trace Minerals Research Stress-X Magnesium Powder Lemon Lime | $0.1272 | 2026-11-02 |
| 4 | Thorne Calcium-Magnesium Malate | $0.1792 | 2026-11-02 |
| Median | 4 ranked malate offers | $0.1052 | 2026-11-02 |
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, BulkSupplements.com Magnesium Malate Capsules 400 mg lasts 60 days: 60 servings against 1 serving a day in the filed directions. $9.98 a month at the label's suggested use (4 capsules a day) and $10.48 at the 420 mg Daily Value reference (21 CFR 101.9); arithmetic on the label, not intake advice.
computed| Measure | Value |
|---|---|
| Net contents as filed | 240 Capsule(s) |
| Serving size as filed | 4 Capsule(s) |
| Servings per container | 60 |
| Servings per day in the directions | 1 |
| Days per bottle | 60 days |
| Cost a month at the label suggested use | $9.98 a month at the label's suggested use (4 capsules a day) |
| $ per 30 days at 420 mg Daily Value | $10.48 |
Source · NIH DSLD 329887 · label 2025-02-23; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
What does "95% Daily Value" mean here, and does it recompute?
The label declares 95% Daily Value; 400 mg against the 420 mg reference in 21 CFR 101.9 recomputes to 95%, the same within one point.
computed| Group as filed | Declared | Reference | Recomputed |
|---|---|---|---|
| Adults and children 4 or more years of age | 95% | 420 mg | 95% |
Source · NIH DSLD 329887; 21 CFR 101.9 · label 2025-02-23 · 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?
BulkSupplements.com Magnesium Malate Capsules 400 mg files 1 other ingredient and a gelatin shell, and no magnesium stearate, against 12 of 20 malate labels that list magnesium stearate.
measured| Entry | Filed ingredient or declaration |
|---|---|
| 1 | Bovine Gelatin |
| Shell | gelatin |
| Target group | Adult (18 - 50 Years) |
| Target group | Gluten Free |
| Target group | Dairy Free |
Source · NIH DSLD 329887 · label 2025-02-23; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
What has research measured about malate, and about side effects?
3 studies in the PubMed-checked registry measured outcomes involving malate; none reports a gastrointestinal outcome as of 2026-11-02. They measured the salt, not this label.
measured| Year | Study | PubMed |
|---|---|---|
| 2020 | Dose-Dependent Absorption Profile of Different Magnesium Compounds | 30761462 |
| 2019 | Timeline (Bioavailability) of Magnesium Compounds in Hours: Which Magnesium Compound Works Best? | 29679349 |
| 2018 | Scottsdale Magnesium Study: Absorption, Cellular Uptake, and Clinical Effectiveness of a Timed-Release Magnesium Supplement in a Standard Adult Clinical Population. | 29425476 |
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?
BulkSupplements.com has 2 FDA recall records matched by brand name in the enforcement data queried 2026-10-19. BulkSupplements.com 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 |
|---|---|---|---|
| F-1827-2018 | 2018-08-22 | FDA inspection found two lots of supplements that did not declare shellfish as an ingredient on the product label; shellfish is properly declared on website. | Terminated |
| H-0619-2025 | 2025-09-24 | Finished product possibly contaminated with pathogenic Staphylococcus aureus. | Terminated |
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 329887 · label 2025-02-23; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
Which labels are closest to this one, with the same salt and dose?
2 labels use the same resolved malate within ±10% of this label's 100 mg per unit, compared side by side on price and capsule verdict.
computed| Label | Elemental per unit | Price | Verdict |
|---|---|---|---|
| Thorne Calcium-Magnesium Malate | 100 mg | $43.00 · 2026-11-02 | Needs size 00 |
| NOW Magnesium Malate Caps | 95 mg | No price | Needs size 00 |
Source · NIH DSLD 329887 · label 2025-02-23; 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 329887 (label 2025-02-23, snapshot 2026-08-10), a price observed 2026-11-02 and the chemistry model of 2026-09-13. No data gap remains for the computed fields. The CSV carries the values shown here.
measured| Field | As filed |
|---|---|
| NIH DSLD label | NIH DSLD 329887 |
| Scanned label (PDF) | Label 329887 scan |
| Label date | 2025-02-23 |
| Date entered into DSLD | 2025-02-23 |
| Barcode (UPC) as filed | X003WWEZTV |
| Distributed exclusively by | BulkSupplements.com, Henderson, NV, USA |
| Claim category as filed | Nutrient |
| Claim category as filed | All Other |
12 additional rows
| Field | As filed |
|---|---|
| Claim category as filed | Structure/Function |
| Formula re: Contains | 400 mg of Magnesium |
| Suggested/Recommended/Usage/Directions | Suggested use: As a dietary supplement, take 4 capsules once daily, or as directed by a physician. |
| Formulation re: Does NOT Contain | Free of: Added sugar, soy, dairy, yeast, gluten, additives |
| General Statements: All Other Content | Scan Me |
| Storage | Store in a dry, cool place |
| FDA Disclaimer Statement | Warning: This product is not intended to diagnose, treat, cure, or prevent any disease. |
| Precautions re: All Other | Always consult a physician before taking any dietary supplement. |
| Precautions re: Children | Keep out of reach of children. |
| General Statements: All Other Content | New |
| Physical state | Capsule |
| Registry snapshot | 2026-08-10 |
Source · NIH DSLD 329887 · label 2025-02-23; 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.