Label arithmetic · NIH DSLD 269834
Best Naturals Magnesium 425 mg: 213 mg of magnesium per capsule, 2 capsules a day (salt not resolved)
213 mg of magnesium per capsule; the label's 2 capsules a day give 425 mg. Salt not resolved from the NIH record. Inside: label lines, ingredients.
Best Naturals Magnesium 425 mg declares 425 mg of elemental magnesium per 2 vcap(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 269834, label dated 2022-07-21.
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: 101% vs 101%
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 425 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 425 mg of magnesium per serving came from magnesium oxide (60.3% magnesium), the richest magnesium salt used in supplements, because the label names no form, each of the 2 capsules would need at least 352 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 form, which the label does not name, may need more.
computed with assumption| Measure | Value |
|---|---|
| Elemental magnesium per serving | 425 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 269834 · label 2022-07-21; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
How much elemental magnesium is actually in this label's filed magnesium lines?
Best Naturals Magnesium 425 mg files 1 magnesium line in NIH DSLD 269834; the selected primary line declares 425 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 |
|---|---|---|
| 425 mg | Salt not named in this row as of 2026-11-02 | Primary serving |
Source · NIH DSLD 269834 · label 2022-07-21; 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?
No single magnesium salt is resolved from the filed record as of 2026-11-02, so the source of the declared magnesium cannot be checked against capsule capacity, compared with oxide, the salt richest in magnesium at 60.3%.
computed with assumption| Form named on the label | Elemental fraction | Source |
|---|---|---|
| No form named as of 2026-11-02 | No defined fraction | named on label |
Source · NIH DSLD 269834 · label 2022-07-21; 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, Best Naturals Magnesium 425 mg lasts 90 days: 90 servings against 1 serving a day in the filed directions.
computed| Measure | Value |
|---|---|
| Net contents as filed | 180 Capsule(s) |
| Serving size as filed | 2 Vcap(s) |
| Servings per container | 90 |
| Servings per day in the directions | 1 |
| Days per bottle | 90 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 269834 · label 2022-07-21; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
What does "101% Daily Value" mean here, and does it recompute?
The label declares 101% Daily Value; 425 mg against the 420 mg reference in 21 CFR 101.9 recomputes to 101%, the same within one point.
computed| Group as filed | Declared | Reference | Recomputed |
|---|---|---|---|
| Adults and children 4 or more years of age | 101% | 420 mg | 101% |
Source · NIH DSLD 269834; 21 CFR 101.9 · label 2022-07-21 · release 2026-08-10-f441aa9f · CSV · method
Why does this label contain magnesium stearate, what shell is it, and who is it filed for?
Best Naturals Magnesium 425 mg files 4 other ingredients, including magnesium stearate (reference fraction 4.1% magnesium; no quantity filed, so it is not added to the total) and a vegetarian shell.
measured| Entry | Filed ingredient or declaration |
|---|---|
| 1 | Cellulose |
| 2 | Rice Flour |
| 3 | Magnesium Stearate |
| 4 | Silicon Dioxide |
| Shell | vegetarian |
| Target group | Adult (18 - 50 Years) |
| Target group | Gluten Free |
| Target group | Dairy Free |
1 additional rows
| Entry | Filed ingredient or declaration |
|---|---|
| Target group | Sugar Free |
Source · NIH DSLD 269834 · label 2022-07-21; 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?
Best Naturals has 1 FDA recall record matched by brand name in the enforcement data queried 2026-10-19. Best Naturals 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-0080-2023 | 2022-10-26 | Best Nutritionals LLC 120 Centennial Ave, Piscataway NJ 08854, is initiating a recall of Fenugreek 610 mg , 360 Capsules ,in White Plastic HDPE bottles because the product has the potential to be contaminated with Salmonella. | 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 269834 · label 2022-07-21; 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 269834 · label 2022-07-21; 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 269834 (label 2022-07-21, 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 8 17716 01736 5); 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 269834 |
| Scanned label (PDF) | Label 269834 scan |
| Label date | 2022-07-21 |
| Date entered into DSLD | 2022-07-21 |
| Barcode (UPC) as filed | 8 17716 01736 5 |
| Manufactured for | Best Naturals, Kenilworth, NJ, USA |
| Claim category as filed | Nutrient |
| Claim category as filed | All Other |
18 additional rows
| Field | As filed |
|---|---|
| Claim category as filed | Structure/Function |
| Formula re: Contains | Certain research publications indicate that Magnesium may help support the following: Promotes muscle health Promotes bone health |
| Precautions re: All Other | Caution: Do not exceed recommended dose. |
| Precautions re: Pregnant or Nursing or Prescription Medications | Pregnant or nursing mothers, children under the age of 18, and individuals with a known medical conditions should consult a physician before using or any dietary supplement. |
| Precautions re: Children | Pregnant or nursing mothers, children under the age of 18, and individuals with a known medical conditions should consult a physician before using or any dietary supplement. |
| Precautions re: Children | Keep out of the reach of children. |
| Precautions re: All Other | Do not use if safety seal is broken or missing. |
| Storage | Keep in cool, dry place. |
| FDA Disclaimer Statement | These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. |
| Seals/Symbols | Made in USA |
| Formula re: Contains | Superior source of magnesium |
| Seals/Symbols | GMP Good Manufacturing Practice Product |
| Formula re: Contains | With magnesium glycinate & magnesium oxide |
| FDA Statement of Identity | Dietary Supplement |
| Suggested/Recommended/Usage/Directions | Suggested Use: As a dietary supplement, take two (2) veggie capsules once daily before a meal or as directed by your healthcare professional. |
| Formulation re: Does NOT Contain | No artificial color, flavor or sweetener, no preservatives, no sugar, no starch, no corn, no soy, no egg, no milk, no lactose, no gluten, no wheat, no yeast. Sodium free. |
| Physical state | Capsule |
| Registry snapshot | 2026-08-10 |
Source · NIH DSLD 269834 · label 2022-07-21; 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.