Label arithmetic · NIH DSLD 255360
Nature's Sunshine Magnesium Complex: 92 mg of magnesium per capsule, 4 capsules a day, $23.94 a month – citrate + malate
92 mg of magnesium per capsule; the label's 4 capsules a day cost $23.94 a month (Amazon, Oct 26). From citrate + malate. Inside: label lines, ingredients.
Nature's Sunshine Magnesium Complex was observed at $19.95 on 2026-10-26 for 50 servings of 184 mg elemental magnesium as citrate: $0.2168 per 100 mg, not ranked while its match is likely (ranked prices observed 2026-10-26 to 2026-11-02). NIH DSLD 255360, label dated 2021-09-24.
computed from the filed labelData release 2026-08-10-f441aa9f · registry snapshot 2026-08-10 · this offer's price observed 2026-10-26 · latest price observation 2026-11-02 · chemistry 2026-10-17
Mass: not computable · Price: $0.2168 per 100 mg · % DV: 44% vs 44%
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 184 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: buffered, complex, blend or asporotate wording leaves the composition unresolved.. The filed amounts are listed in the next block. Lower bound, not a measurement: even if all 184 mg of magnesium per serving came from magnesium oxide (60.3% magnesium), the richest magnesium salt used in supplements, because the complex or buffer does not specify every carrier, each of the 2 capsules would need at least 153 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 | 184 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 255360 · label 2021-09-24; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
How much elemental magnesium is actually in this label's filed magnesium lines?
Nature's Sunshine Magnesium Complex files 1 magnesium line in NIH DSLD 255360; the selected primary line declares 184 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 |
|---|---|---|
| 184 mg | citrate, malate · Magnesium (Form: as Magnesium Citrate, and Magnesium Malate) | Primary serving |
Source · NIH DSLD 255360 · label 2021-09-24; 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 255360 · label 2021-09-24; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
Is this a good price for the elemental magnesium I'm actually getting?
Nature's Sunshine Magnesium Complex costs $0.2168 per 100 mg of elemental magnesium at the price observed 2026-10-26, not ranked while its match is likely, against a same-salt median of none; prices observed 2026-10-26 to 2026-11-02. First observed 2026-08-10 at $19.95, latest 2026-10-26 at $19.95, 10 observations.
computed| Rank | Label | Per 100 mg | Observed |
|---|---|---|---|
| On review | Nature's Sunshine Magnesium Complex (this label) | $0.2168 | 2026-10-26 |
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, Nature's Sunshine Magnesium Complex lasts 25 days: 50 servings against 2 servings a day in the filed directions. $23.94 a month at the label's suggested use (4 capsules a day) and $27.32 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 | 100 Capsule(s) |
| Serving size as filed | 2 Capsule(s) |
| Servings per container | 50 |
| Servings per day in the directions | 2 |
| Days per bottle | 25 days |
| Cost a month at the label suggested use | $23.94 a month at the label's suggested use (4 capsules a day) |
| $ per 30 days at 420 mg Daily Value | $27.32 |
Source · NIH DSLD 255360 · label 2021-09-24; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
What does "44% Daily Value" mean here, and does it recompute?
The label declares 44% Daily Value; 184 mg against the 420 mg reference in 21 CFR 101.9 recomputes to 44%, the same within one point.
computed| Group as filed | Declared | Reference | Recomputed |
|---|---|---|---|
| Adults and children 4 or more years of age | 44% | 420 mg | 44% |
Source · NIH DSLD 255360; 21 CFR 101.9 · label 2021-09-24 · release 2026-08-10-f441aa9f · CSV · method
Why does this label contain magnesium stearate, what shell is it, and who is it filed for?
Nature's Sunshine Magnesium Complex 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 | Capsule |
| 2 | Cellulose |
| 3 | Vegetable Magnesium Stearate |
| 4 | Silicon Dioxide |
| Shell | vegetarian |
| Target group | Adult (18 - 50 Years) |
| Target group | Kosher |
Source · NIH DSLD 255360 · label 2021-09-24; 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?
Nature's Sunshine has 7 FDA recall records matched by brand name in the enforcement data queried 2026-10-19. Nature's Sunshine 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-0779-2020 | 2020-03-04 | Notified by supplier that flax seed used in products is under recall due to detection of unapproved herbicide. | Terminated |
| F-0781-2020 | 2020-03-04 | Notified by supplier that flax seed used in products is under recall due to detection of unapproved herbicide. | Terminated |
| F-0778-2020 | 2020-03-04 | Notified by supplier that flax seed used in products is under recall due to detection of unapproved herbicide. | Terminated |
| F-0782-2020 | 2020-03-04 | Notified by supplier that flax seed used in products is under recall due to detection of unapproved herbicide. | Terminated |
| F-0780-2020 | 2020-03-04 | Notified by supplier that flax seed used in products is under recall due to detection of unapproved herbicide. | 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 255360 · label 2021-09-24; 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 255360 · label 2021-09-24; 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 255360 (label 2021-09-24, snapshot 2026-08-10), a price observed 2026-10-26 and the chemistry model of 2026-09-13. 2 gaps remain: Single-salt capacity audit excluded as of 2026-10-17: buffered, complex, blend or asporotate wording leaves the composition unresolved.; 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 255360 |
| Label date | 2021-09-24 |
| Date entered into DSLD | 2021-09-24 |
| Barcode (UPC) as filed | 0 99904 01859 4 |
| Label version · Image difference, same product | NIH DSLD 4588 |
| Label version · Image difference, same product | NIH DSLD 207582 |
| Label version · Image difference, same product | NIH DSLD 221096 |
| Manufacturer | Nature's Sunshine Products, Inc., Spanish Fork, UT |
16 additional rows
| Field | As filed |
|---|---|
| Claim category as filed | Nutrient |
| Claim category as filed | All Other |
| Claim category as filed | Structure/Function |
| 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. |
| General Statements: All Other Content | Bottle made from 100% post consumer recycled material. We are committed to you and our planet. Scan to learn more. |
| Formula re: Contains | Magnesium is an essential mineral that is important to the function of every cell in the body. Organs such as the heart, brain, and kidneys require adequate levels of this mineral for proper function. Magnesium Complex combines a superior blend of two highly bioavailable forms of magnesium - citrate and malate. Magnesium citrate is an alkalizing form while magnesium malate has been found to promote musculoskeletal health. |
| Seals/Symbols | Ko Pareve (Kosher) |
| Formula re: Kosher | Ko Pareve (Kosher) |
| Precautions re: All Other | Do not use if inner seal is missing or damaged. |
| General Statements: All Other Content | New look! Same great product |
| Formulation re: Other | Contributes to energy production Promotes musculoskeletal health Guaranteed pure |
| FDA Statement of Identity | Dietary Supplement |
| General Statements: All Other Content | Herbal experts since 1972 |
| Suggested/Recommended/Usage/Directions | Recommended Use: Take 2 capsules twice daily with a meal. |
| Physical state | Capsule |
| Registry snapshot | 2026-08-10 |
Source · NIH DSLD 255360 · label 2021-09-24; 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.