Label arithmetic · NIH DSLD 257523
Freeda Magnesium Citrate: 105 mg of magnesium per tablet, 4 tablets a day
105 mg of magnesium per tablet; the label's 4 tablets a day give 420 mg. No US price matched (Nov 2). Inside: salt weight, %DV check.
Freeda Magnesium Citrate declares 420 mg of elemental magnesium per serving as citrate, which means 2,599–3,717 mg of magnesium citrate pressed into 4 tablets, compared with 1,100 mg in the largest standard capsule; capsule verdicts do not apply to a tablet. No US retail price matched as of 2026-11-02; 17 of the 135 citrate labels in this registry have a matched price. NIH DSLD 257523, label dated 2021-12-18.
computed from the filed label
Chart data
| Displayed chart text |
|---|
| gluconate |
| 7,167 |
| orotate |
| 5,777 |
| L-threonate |
| 5,091 |
| taurate |
| 4,709 |
| lactate |
| 3,497 |
| glycerophosphate |
| 3,360 |
| glycinate |
| 2,979 |
| malate |
| 2,703 |
| aspartate |
| 2,685 |
| citrate |
| 2,599 |
| sulfate |
| 2,080 |
| chloride |
| 1,645 |
| carbonate |
| 1,457 |
| hydroxide |
| 1,008 |
| oxide |
| 696 |
Data release 2026-08-10-f441aa9f · registry snapshot 2026-08-10 · latest price observation 2026-10-19 · chemistry 2026-10-17
Mass: 650–929 mg per tablet · Price: none matched · % DV: 100% vs 100%
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 citrate is pressed into one tablet?
Freeda Magnesium Citrate carries 2,599–3,717 mg of magnesium citrate per serving for 420 mg of elemental magnesium, against 1,100 mg in the largest standard capsule; capsule capacities do not apply to this tablet or pill.
computed with assumption| Measure | Value |
|---|---|
| Elemental magnesium per serving | 420 mg |
| Units per serving | 4 |
| Magnesium citrate per serving | 2,599–3,717 mg |
| Magnesium citrate per tablet | 650–929 mg |
| Capsule capacity 0 · 00 · 000 | 545 · 730 · 1,100 mg |
| Verdict | Capsule sizes do not apply |
The filed salt can have more than one hydration state (trimagnesium dicitrate 16.2%; dibasic and hydrated forms as low as 11.3%), so the compound mass is a range.
Source · NIH DSLD 257523 · label 2021-12-18; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
How much elemental magnesium is actually in this label's filed magnesium lines?
Freeda Magnesium Citrate files 1 magnesium line in NIH DSLD 257523; the selected primary line declares 420 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 |
|---|---|---|
| 420 mg | Salt not named in this row; magnesium citrate is taken from the label text | Primary serving |
Source · NIH DSLD 257523 · label 2021-12-18; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
Does this label's citrate claim hold up, or could the magnesium come from another source?
The label names one magnesium form, citrate, 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 citrate | 11.3–16.2% | full NIH DSLD record text |
Source · NIH DSLD 257523 · label 2021-12-18; 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; 17 of 135 citrate labels have one, against a median of $0.1159 per 100 mg among 12 ranked citrate offers.
computed
Chart data
| Displayed chart text |
|---|
| n=12 |
| P25 $0.0843 |
| P75 $0.1469 |
| median $0.1159 |
| Rank | Label | Per 100 mg | Observed |
|---|---|---|---|
| 1 | Best Naturals Magnesium Citrate 200 mg | $0.0344 | 2026-11-02 |
| 2 | Solgar Magnesium Citrate | $0.0607 | 2026-11-02 |
| 3 | LES Labs Magnesium Citrate | $0.0777 | 2026-11-02 |
| 4 | Bluebonnet Magnesium Citrate | $0.0865 | 2026-11-02 |
| 5 | Solaray Magnesium Citrate 400 mg | $0.0868 | 2026-11-02 |
| Median | 12 ranked citrate offers | $0.1159 | 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, Freeda Magnesium Citrate lasts 25 days: 25 servings against 1 serving a day in the filed directions.
computed| Measure | Value |
|---|---|
| Net contents as filed | 100 Tablet(s) |
| Serving size as filed | 4 Coated Tablet(s) |
| Servings per container | 25 |
| Servings per day in the directions | 1 |
| Days per bottle | 25 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 257523 · label 2021-12-18; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
What does "100% Daily Value" mean here, and does it recompute?
The label declares 100% Daily Value; 420 mg against the 420 mg reference in 21 CFR 101.9 recomputes to 100%, the same within one point.
computed| Group as filed | Declared | Reference | Recomputed |
|---|---|---|---|
| Adults and children 4 or more years of age | 100% | 420 mg | 100% |
Source · NIH DSLD 257523; 21 CFR 101.9 · label 2021-12-18 · release 2026-08-10-f441aa9f · CSV · method
Why does this label contain magnesium stearate, what shell is it, and who is it filed for?
Freeda Magnesium Citrate files 6 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 43 of 135 citrate labels that list magnesium stearate.
measured| Entry | Filed ingredient or declaration |
|---|---|
| 1 | Cellulose |
| 2 | Silica |
| 3 | Croscarmellose Sodium |
| 4 | Stearic Acid |
| 5 | Vegetable Magnesium Stearate |
| 6 | Hypromellose |
| Shell | vegetarian |
| Target group | Vegan |
5 additional rows
| Entry | Filed ingredient or declaration |
|---|---|
| Target group | Vegetarian |
| Target group | Adult (18 - 50 Years) |
| Target group | Kosher |
| Target group | Gluten Free |
| Target group | Sugar Free |
Source · NIH DSLD 257523 · label 2021-12-18; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
What has research measured about citrate, and about side effects?
10 studies in the PubMed-checked registry measured outcomes involving citrate; 1 mention gastrointestinal or adverse outcomes. They measured the salt, not this label.
measured| Year | Study | PubMed |
|---|---|---|
| 2025 | Comparing the Bioavailability of Two Seawater-Derived Magnesium Preparations. | 40955524 |
| 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?
Freeda has 0 FDA recall records matched by brand name in the enforcement data queried 2026-10-19. Freeda 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 257523 · label 2021-12-18; 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 citrate within ±10% of this label's 105 mg per unit, compared side by side on price and capsule verdict.
computed| Label | Elemental per unit | Price | Verdict |
|---|---|---|---|
| Freeda Magnesium Citrate | 105 mg | No price | Capsule sizes do not apply |
| Divine Bounty Magnesium Citrate | 104 mg | $15.95 · 2026-11-02 | Needs size 00 |
| XYMOGEN Magnesium Citrate (DSLD 6139) | 100 mg | $36.99 · 2026-11-02 | Needs size 00 |
| Vitamin World Magnesium Citrate | 100 mg | No price | Needs size 00 |
| XYMOGEN Magnesium Citrate (DSLD 50041) | 100 mg | $36.99 · 2026-11-02 | Needs size 00 |
| Spring Valley Rapid-Release Magnesium Citrate 100 mg | 100 mg | No price | Needs size 00 |
Source · NIH DSLD 257523 · label 2021-12-18; 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 257523 (label 2021-12-18, 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 (barcode 7 58487 03061 3). The CSV carries the values shown here.
measured| Field | As filed |
|---|---|
| NIH DSLD label | NIH DSLD 257523 |
| Label date | 2021-12-18 |
| Date entered into DSLD | 2021-12-18 |
| Barcode (UPC) as filed | 7 58487 03061 3 |
| Label version · Image difference, same product | NIH DSLD 132953 |
| Label version · Package size difference, same product | NIH DSLD 257525 |
| Label version · Package size difference, same product | NIH DSLD 132953 |
| Manufactured for | Freeda Health, Brooklyn, NY |
19 additional rows
| Field | As filed |
|---|---|
| Claim category as filed | All Other |
| Claim category as filed | Structure/Function |
| Brand IP Statement(s) re: (c), (TM), (SM) | Next century nutrition |
| Formulation re: Other | Promotes healthy bones Helps the body as it relaxes Supports nerve & muscle function Promotes restful sleep |
| Formulation re: Vegetarian/Vegan | Vegan |
| Formulation re: Does NOT Contain | No gluten No lactose No artificial colors No artificial flavors No animal derivatives No sugar or starch No gelatin No yeast |
| Brand IP Statement(s) re: (c), (TM), (SM) | The value of innovation since 1928 Freeda since 1928 |
| Suggested/Recommended/Usage/Directions | Suggested use: Adults, take four (4) tablets daily, preferably with food and drink. |
| Seals/Symbols | Manufactured in a GMP Certified Facility |
| Formulation re: Other | Bone & joint support Supports, bone, muscle, and nerve health |
| Formula re: Kosher | Kosher Pareve (New Square Rabbinical Kashrus Council) OU (Kosher) |
| FDA Statement of Identity | Magnesium Supplement |
| Precautions re: Children | Keep out of reach of children. |
| Storage | Store in a cool, dry place. Do not expose to excessive heat or moisture. |
| Precautions re: Pregnant or Nursing or Prescription Medications | If you are pregnant, nursing, taking medication, or have a medical condition, consult your health care practitioner prior to using 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. |
| Seals/Symbols | Kosher Pareve (New Square Rabbinical Kashrus Council) OU (Kosher) |
| Physical state | Tablet or Pill |
| Registry snapshot | 2026-08-10 |
Source · NIH DSLD 257523 · label 2021-12-18; 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.