Label arithmetic · NIH DSLD 323795
Maxi Health Maxi Potassium Magnesium: 50 mg of magnesium per capsule, 1–2 capsules a day
50 mg of magnesium per capsule; the label's 1–2 capsules a day give 50–100 mg. No US price matched (Nov 2). Inside: label lines, ingredients.
Maxi Health Maxi Potassium Magnesium declares 50 mg of elemental magnesium per 1 capsule(s); the magnesium salt is not resolved from the filed record, Single-salt capacity audit excluded as of 2026-10-17: buffered, complex, blend or asporotate wording leaves the composition unresolved., as of 2026-11-02. No US retail price matched as of 2026-11-02. NIH DSLD 323795, label dated 2025-08-22.
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: 12% vs 12%
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 50 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 50 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, the single capsule would need at least 83 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 | 50 mg |
| Units per serving | 1 |
| 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 323795 · label 2025-08-22; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
How much elemental magnesium is actually in this label's filed magnesium lines?
Maxi Health Maxi Potassium Magnesium files 1 magnesium line in NIH DSLD 323795; the selected primary line declares 50 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 |
|---|---|---|
| 50 mg | Salt not named in this row as of 2026-11-02 | Primary serving |
Source · NIH DSLD 323795 · label 2025-08-22; 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 323795 · label 2025-08-22; 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, Maxi Health Maxi Potassium Magnesium lasts 45–90 days: 90 servings against 1–2 servings a day in the filed directions.
computed| Measure | Value |
|---|---|
| Net contents as filed | 90 Maxicap(s) |
| Serving size as filed | 1 Capsule(s) |
| Servings per container | 90 |
| Servings per day in the directions | 1–2 |
| Days per bottle | 45–90 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 323795 · label 2025-08-22; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
What does "12% Daily Value" mean here, and does it recompute?
The label declares 12% Daily Value; 50 mg against the 420 mg reference in 21 CFR 101.9 recomputes to 12%, the same within one point.
computed| Group as filed | Declared | Reference | Recomputed |
|---|---|---|---|
| Adults and children 4 or more years of age | 12% | 420 mg | 12% |
Source · NIH DSLD 323795; 21 CFR 101.9 · label 2025-08-22 · release 2026-08-10-f441aa9f · CSV · method
Why does this label contain magnesium stearate, what shell is it, and who is it filed for?
Maxi Health Maxi Potassium Magnesium files 10 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 | Microcrystalline Cellulose |
| 3 | Magnesium Stearate |
| 4 | Calcium Carbonate |
| 5 | Bromelain |
| 6 | Papain |
| 7 | Lipase |
| 8 | Amylase |
10 additional rows
| Entry | Filed ingredient or declaration |
|---|---|
| 9 | Protease |
| 10 | Silica |
| Shell | vegetarian |
| Target group | Vegan |
| Target group | Vegetarian |
| Target group | Adult (18 - 50 Years) |
| Target group | Kosher |
| Target group | Gluten Free |
| Target group | Dairy Free |
| Target group | Sugar Free |
Source · NIH DSLD 323795 · label 2025-08-22; 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?
Maxi Health has 0 FDA recall records matched by brand name in the enforcement data queried 2026-10-19. Maxi Health 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 |
|---|---|---|---|
| No recall record as of 2026-10-19 |
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?
Same filed formulation as 1 other labels of this brand; no other brand files it as of 2026-11-02.
computed| Label | Brand | Price per 100 mg |
|---|---|---|
| No cross-brand match as of 2026-11-02 |
Source · NIH DSLD 323795 · label 2025-08-22; 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 323795 · label 2025-08-22; 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 323795 (label 2025-08-22, 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: buffered, complex, blend or asporotate wording leaves the composition unresolved.; No US retail price matched as of 2026-11-02 (barcode 7 53406 26309 7); 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 323795 |
| Scanned label (PDF) | Label 323795 scan |
| Label date | 2025-08-22 |
| Date entered into DSLD | 2025-08-22 |
| Barcode (UPC) as filed | 7 53406 26309 7 |
| Manufactured in USA for | Maxi Health, Brooklyn, N.Y. |
| Claim category as filed | All Other |
| Claim category as filed | Structure/Function |
23 additional rows
| Field | As filed |
|---|---|
| Suggested/Recommended/Usage/Directions | Directions: Take one (1) Maxicap once or twice daily, or as directed. |
| Storage | Store tightly closed in a cool, dry place. |
| Precautions re: Children | Keep out of reach of children. |
| 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. |
| Formulation re: Vegetarian/Vegan | Vegetarian |
| Formula re: Kosher | Certified Kosher |
| General Statements: All Other Content | Doctor Formulated |
| Seals/Symbols | UK (Rav Shmuel Dovid Krausz (Udvarer Rav)) (Kosher) BDZ Edah Charedis - Orthodox Council of Jerusalem (Kosher) |
| Formula re: Contains | Highly absorbable citrates |
| Formulation re: Other | Muscle formula |
| FDA Statement of Identity | Dietary Supplement |
| Formulation re: Other | Cardiovascular health |
| Seals/Symbols | OU (Kosher) |
| General Statements: All Other Content | Nothing beats a happy heart |
| Brand IP Statement(s) re: (c), (TM), (SM) | MaxiHealth True to total wellness |
| Formula re: Contains | Enzymax Base |
| Formulation re: Does NOT Contain | This product contains no animal products, soy, wheat, gluten, yeast, salt, sugar, milk, artificial flavors, colorings or preservatives. |
| Brand IP Statement(s) re: (c), (TM), (SM) | Enzymax, a vital digestive enzyme complex, is a registered trademark of Maxi Health Research LLC. |
| Formulation re: Other | This product was manufactured in a GMP Certified facility. |
| Seals/Symbols | Manufactured in a Certified GMP facility |
| Formulation re: Other | Cardiovascular health Abundant energy |
| Physical state | Capsule |
| Registry snapshot | 2026-08-10 |
Source · NIH DSLD 323795 · label 2025-08-22; 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.