Label arithmetic · NIH DSLD 265888
DC Magnesium & Potassium Aspartate: 100 mg of magnesium per capsule, 4 capsules a day
100 mg of magnesium per capsule; the label's 4 capsules a day give 400 mg. No US price matched (Nov 2). Inside: salt weight, capsule size.
DC Magnesium & Potassium Aspartate declares 200 mg of elemental magnesium per serving as aspartate, which needs 639–1,335 mg of magnesium aspartate 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. No US retail price matched as of 2026-11-02; 3 of the 25 aspartate labels in this registry have a matched price. NIH DSLD 265888, label dated 2022-04-11.
computed from the filed label
Chart data
| Displayed chart text |
|---|
| 545 mg |
| 730 mg |
| 1,100 mg |
| 639–1,335 mg of aspartate per capsule |
Data release 2026-08-10-f441aa9f · registry snapshot 2026-08-10 · latest price observation 2026-10-19 · chemistry 2026-10-17
Mass: 639–1,335 mg per capsule · Price: none matched · % DV: 50% vs 48%
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 200 mg of aspartate actually fit in one capsule, or do I need more than one?
Estimated salt mass versus assumed capsule capacity: DC Magnesium & Potassium Aspartate implies 639–1,335 mg of magnesium aspartate in each capsule to deliver 200 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 | 200 mg |
| Units per serving | 2 |
| Magnesium aspartate per serving | 1,279–2,670 mg |
| Magnesium aspartate per capsule | 639–1,335 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 (1:1 magnesium aspartate 15.64%; bis(hydrogen aspartate) 8.42%, its dihydrate 7.49%; stoichiometry and hydration unresolved), so the compound mass is a range.
Source · NIH DSLD 265888 · label 2022-04-11; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
How much elemental magnesium is actually in this label's filed magnesium lines?
DC Magnesium & Potassium Aspartate files 1 magnesium line in NIH DSLD 265888; the selected primary line declares 200 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 |
|---|---|---|
| 200 mg | Salt not named in this row; magnesium aspartate is taken from the label text | Primary serving |
Source · NIH DSLD 265888 · label 2022-04-11; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
Does this label's aspartate claim hold up, or could the magnesium come from another source?
The label names one magnesium form, aspartate, 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 aspartate | 7.5–15.6% | full NIH DSLD record text |
Source · NIH DSLD 265888 · label 2022-04-11; 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; 3 of 25 aspartate labels have one, against a median of none per 100 mg among 0 ranked aspartate offers.
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, DC Magnesium & Potassium Aspartate lasts 30 days: 60 servings against 2 servings a day in the filed directions.
computed| Measure | Value |
|---|---|
| Net contents as filed | 120 Capsule(s) |
| Serving size as filed | 2 Capsule(s) |
| Servings per container | 60 |
| Servings per day in the directions | 2 |
| Days per bottle | 30 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 265888 · label 2022-04-11; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
What does "50% Daily Value" mean here, and does it recompute?
The label declares 50% Daily Value; 200 mg against the 420 mg reference in 21 CFR 101.9 recomputes to 48%, a difference of 2 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 |
| 48 · 50 |
| Declared vs |
| recomputed % DV |
| Group as filed | Declared | Reference | Recomputed |
|---|---|---|---|
| Adults and children 4 or more years of age | 50% | 420 mg | 48% |
Source · NIH DSLD 265888; 21 CFR 101.9 · label 2022-04-11 · release 2026-08-10-f441aa9f · CSV · method
Why does this label contain magnesium stearate, what shell is it, and who is it filed for?
DC Magnesium & Potassium Aspartate 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 gelatin shell, against 15 of 25 aspartate labels that list magnesium stearate.
measured| Entry | Filed ingredient or declaration |
|---|---|
| 1 | Gelatin |
| 2 | Vegetable Magnesium Stearate |
| 3 | Silica |
| Shell | gelatin |
| Target group | Adult (18 - 50 Years) |
| Target group | Kosher |
| Target group | Women (not pregnant or lactating) |
| Target group | Gluten Free |
Source · NIH DSLD 265888 · label 2022-04-11; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
What has research measured about aspartate, and about side effects?
2 studies in the PubMed-checked registry measured outcomes involving aspartate; none reports a gastrointestinal outcome as of 2026-11-02. They measured the salt, not this label.
measured| Year | Study | PubMed |
|---|---|---|
| 2005 | Study of magnesium bioavailability from ten organic and inorganic Mg salts in Mg-depleted rats using a stable isotope approach | 16548135 |
| 2001 | Bioavailability of US commercial magnesium preparations | 11794633 |
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?
DC has 0 FDA recall records matched by brand name in the enforcement data queried 2026-10-19. DC 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 265888 · label 2022-04-11; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
Which labels are closest to this one, with the same salt and dose?
6 labels use the same resolved aspartate 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 |
|---|---|---|---|
| Douglas Laboratories Magnesium Aspartate (DSLD 232560) | 100 mg | No price | Needs size 00 |
| DC Magnesium & Potassium Aspartate | 100 mg | No price | Needs size 00 |
| Douglas Laboratories Magnesium Aspartate (DSLD 245305) | 100 mg | No price | Needs size 00 |
| Wonder Laboratories Magnesium Potassium Aspartate (DSLD 260785) | 100 mg | No price | Needs size 00 |
| Wonder Laboratories Magnesium Potassium Aspartate (DSLD 262843) | 100 mg | No price | Needs size 00 |
| Wonder Laboratories Magnesium Potassium Aspartate (DSLD 262844) | 100 mg | No price | Needs size 00 |
Source · NIH DSLD 265888 · label 2022-04-11; 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 265888 (label 2022-04-11, 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 265888 |
| Scanned label (PDF) | Label 265888 scan |
| Label date | 2022-04-11 |
| Date entered into DSLD | 2022-04-11 |
| Barcode (UPC) as filed | Not filed as of 2026-11-02 |
| Label version · Image difference, same product | NIH DSLD 239482 |
| Label version · Image difference, same product | NIH DSLD 245340 |
| Label version · Image difference, same product | NIH DSLD 265887 |
21 additional rows
| Field | As filed |
|---|---|
| Mfg. by | Dee Cee Laboratories, Inc., White House, TN |
| Claim category as filed | Nutrient |
| Claim category as filed | All Other |
| Claim category as filed | Structure/Function |
| Precautions re: All Other | Tamper Evident: Do not use this product if imprinted foil seal under cap is broken or missing. |
| Formula re: Contains | Magnesium plays an essential role in maintaining proper bone mineralization. Magnesium is also involved in muscle contractions and nerve impulses. Potassium is essential for muscle activity and nerve transmission. Aids in mineral balance of the blood. Works with sodium to regulate the body's water balance. |
| Formulation re: Other | Mfg. in an FDA Registered Facility using Good Manufacturing Practices (GMPs) |
| Storage | Keep tightly closed. Store at room temperature: 59 degrees - 86 degrees F (15 degrees to 30 degrees C). |
| Precautions re: Children | Keep out of reach of children. |
| Formulation re: Other | Conforms to USP <2091> for weight. Meets USP <2040> disintegration for maximum bioavailability. |
| Precautions re: Pregnant or Nursing or Prescription Medications | Caution: If you are pregnant or nursing do not take this product. |
| 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: Does NOT Contain | Gluten free |
| Seals/Symbols | Quali Pure |
| FDA Statement of Identity | Dietary Supplement |
| Suggested/Recommended/Usage/Directions | Directions: As a dietary supplement, take 2 capsules twice a day, morning and evening, preferably with a meal. |
| Seals/Symbols | Ko Kosher Service |
| Formula re: Kosher | Ko Kosher Service |
| Formulation re: Other | Made in USA |
| Physical state | Capsule |
| Registry snapshot | 2026-08-10 |
Source · NIH DSLD 265888 · label 2022-04-11; 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.