Label arithmetic · NIH DSLD 206597
Geri-Care Magnesium Oxide: 240 mg of magnesium per 0.7 gram, 80 servings
240 mg of magnesium in each 0.7 gram, about 80 servings per 56 Gram. Oxide is 60.3% magnesium. Inside: salt per scoop, %DV check.
Geri-Care Magnesium Oxide declares 240 mg of elemental magnesium per serving as oxide, which means 398 mg of magnesium oxide powder in one serving, compared with 1,100 mg in the largest standard capsule; that is the weight of the salt alone, before any fillers or flavours in the scoop. No US retail price matched as of 2026-11-02; 10 of the 61 oxide labels in this registry have a matched price. NIH DSLD 206597, label dated 2019-09-24.
computed from the filed label
Chart data
| Displayed chart text |
|---|
| gluconate |
| 4,096 |
| orotate |
| 3,301 |
| L-threonate |
| 2,909 |
| taurate |
| 2,691 |
| lactate |
| 1,998 |
| glycerophosphate |
| 1,920 |
| glycinate |
| 1,702 |
| malate |
| 1,544 |
| aspartate |
| 1,535 |
| citrate |
| 1,485 |
| sulfate |
| 1,189 |
| chloride |
| 940 |
| carbonate |
| 832 |
| hydroxide |
| 576 |
| oxide |
| 398 |
Data release 2026-08-10-f441aa9f · registry snapshot 2026-08-10 · latest price observation 2026-10-19 · chemistry 2026-10-17
Mass: 398 mg per serving · Price: none matched · % DV: 60% vs 57%
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.
How much oxide powder is in one scoop?
Geri-Care Magnesium Oxide carries 398 mg of magnesium oxide per serving for 240 mg of elemental magnesium, against 1,100 mg in the largest standard capsule; capsule capacities do not apply to this powder.
computed with assumption| Measure | Value |
|---|---|
| Elemental magnesium per serving | 240 mg |
| Units per serving | Not a discrete unit as of 2026-11-02 |
| Magnesium oxide per serving | 398 mg |
| Magnesium oxide per serving | Not computable as of 2026-11-02 |
| Capsule capacity 0 · 00 · 000 | 545 · 730 · 1,100 mg |
| Verdict | Capsule sizes do not apply |
Source · NIH DSLD 206597 · label 2019-09-24; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
How much elemental magnesium is actually in this label's filed magnesium lines?
Geri-Care Magnesium Oxide files 1 magnesium line in NIH DSLD 206597; the selected primary line declares 240 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 |
|---|---|---|
| 240 mg | Salt not named in this row; magnesium oxide is taken from the label text | Primary serving |
Source · NIH DSLD 206597 · label 2019-09-24; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
Does this label's oxide claim hold up, or could the magnesium come from another source?
The label names one magnesium form, oxide, resolved from the full NIH DSLD record text; capsule capacities do not apply to this form, compared with oxide, the salt richest in magnesium at 60.3%.
computed with assumption| Form named on the label | Elemental fraction | Source |
|---|---|---|
| Magnesium oxide | 60.3% | full NIH DSLD record text |
Source · NIH DSLD 206597 · label 2019-09-24; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
Is this a good price for the elemental magnesium I'm actually getting?
No US retail price is matched to this label as of 2026-11-02; 10 of 61 oxide labels have one, against a median of $0.0293 per 100 mg among 5 ranked oxide offers.
computed
Chart data
| Displayed chart text |
|---|
| n=5 |
| P25 $0.0258 |
| P75 $0.0356 |
| median $0.0293 |
| Rank | Label | Per 100 mg | Observed |
|---|---|---|---|
| 1 | Nutricost Magnesium Oxide | $0.0148 | 2026-11-02 |
| 2 | tnvitamins Magnesium Oxide 420 mg | $0.0258 | 2026-11-02 |
| 3 | Douglas Laboratories Magnesium Oxide | $0.0293 | 2026-11-02 |
| 4 | Wonder Labs Magnesium Oxide 400 | $0.0356 | 2026-11-02 |
| 5 | Carlson Magnesium Gels 400 mg | $0.0636 | 2026-11-02 |
| Median | 5 ranked oxide offers | $0.0293 | 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, Geri-Care Magnesium Oxide lasts 80 days: 80 servings against 1 serving a day in the filed directions.
computed| Measure | Value |
|---|---|
| Net contents as filed | 56 Gram(s); 2 oz. |
| Serving size as filed | 0.7 Gram(s) (1 packet) |
| Servings per container | 80 |
| Servings per day in the directions | 1 |
| Days per bottle | 80 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 206597 · label 2019-09-24; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
What does "60% Daily Value" mean here, and does it recompute?
The label declares 60% Daily Value; 240 mg against the 420 mg reference in 21 CFR 101.9 recomputes to 57%, a difference of 3 points. Labels filed under the earlier 400 mg reference, or with a different filing basis, show gaps of this kind.
computed
Chart data
| Displayed chart text |
|---|
| Declared vs recomputed % |
| DV |
| 57 · 60 |
| Declared vs |
| recomputed % DV |
| Group as filed | Declared | Reference | Recomputed |
|---|---|---|---|
| Adults and children 4 or more years of age | 60% | 420 mg | 57% |
Source · NIH DSLD 206597; 21 CFR 101.9 · label 2019-09-24 · release 2026-08-10-f441aa9f · CSV · method
Why does this label contain magnesium stearate, what shell is it, and who is it filed for?
Geri-Care Magnesium Oxide files 3 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, against 30 of 61 oxide labels that list magnesium stearate.
measured| Entry | Filed ingredient or declaration |
|---|---|
| 1 | Microcrystalline Cellulose |
| 2 | Silica |
| 3 | Magnesium Stearate |
| Shell | vegetarian |
| Target group | Adult (18 - 50 Years) |
Source · NIH DSLD 206597 · label 2019-09-24; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
What has research measured about oxide, and about side effects?
12 studies in the PubMed-checked registry measured outcomes involving oxide; 2 mention gastrointestinal or adverse outcomes. They measured the salt, not this label.
measured| Year | Study | PubMed |
|---|---|---|
| 2026 | Randomized, open-label study of the short-term pharmacokinetics of oral magnesium oxide in healthy volunteers. | 42091979 |
| 2024 | Comparative Clinical Study on Magnesium Absorption and Side Effects After Oral Intake of Microencapsulated Magnesium (MAGSHAPE™ Microcapsules) Versus Other Magnesium Sources. | 39770988 |
| 2022 | Effects of short-term magnesium supplementation on ionized, total magnesium and other relevant electrolytes levels. | 35041150 |
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?
Geri-Care has 0 FDA recall records matched by brand name in the enforcement data queried 2026-10-19. Geri-Care 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?
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 206597 · label 2019-09-24; 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 206597 · label 2019-09-24; 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 206597 (label 2019-09-24, snapshot 2026-08-10) and the chemistry model of 2026-09-13. 1 gap remain: No US retail price matched as of 2026-11-02; no barcode is filed. The CSV carries the values shown here.
measured| Field | As filed |
|---|---|
| NIH DSLD label | NIH DSLD 206597 |
| Label date | 2019-09-24 |
| Date entered into DSLD | 2019-09-24 |
| Barcode (UPC) as filed | Not filed as of 2026-11-02 |
| Distributed by | Geri-Care Pharmaceuticals Corp., Brooklyn, NY |
| Claim category as filed | Nutrient |
| Claim category as filed | All Other |
| General Statements: All Other Content | Save carton for complete information |
11 additional rows
| Field | As filed |
|---|---|
| Suggested/Recommended/Usage/Directions | Suggested use: Adults: take one (1) packet daily, as a dietary supplement, or as directed by your doctor. Before taking, mix contents of packet with liquid or soft food such as applesauce. Take soon after mixing. |
| Precautions re: Pregnant or Nursing or Prescription Medications | As with any supplement, if you are pregnant, nursing, or taking medication, ask a health professional before use. |
| Precautions re: Children | Keep out of reach of children. |
| Brand IP Statement(s) re: (c), (TM), (SM) | Patent pending |
| Formula re: Contains | 400 mg Per Packet 240 mg Elemental Magnesium |
| FDA Statement of Identity | Dietary Supplement |
| Storage | Store at controlled room temperature, USP. |
| Precautions re: All Other | Tamper evident: Do not use if packet is damaged or open |
| General Statements: All Other Content | 80 single-dose powder packets |
| Physical state | Powder |
| Registry snapshot | 2026-08-10 |
Source · NIH DSLD 206597 · label 2019-09-24; 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.