Label arithmetic · NIH DSLD 218431
Solgar Magnesium with Vitamin B6: 133 mg of magnesium per tablet, 3 tablets a day
133 mg of magnesium per tablet; the label's 3 tablets a day give 400 mg. No US price matched (Nov 2). Inside: salt weight, %DV check.
Solgar Magnesium with Vitamin B6 declares 400 mg of elemental magnesium per serving as oxide, which means 663 mg of magnesium oxide pressed into 3 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; 10 of the 61 oxide labels in this registry have a matched price. NIH DSLD 218431, label dated 2020-04-23.
computed from the filed label
Chart data
| Displayed chart text |
|---|
| gluconate |
| 6,826 |
| orotate |
| 5,502 |
| L-threonate |
| 4,848 |
| taurate |
| 4,484 |
| lactate |
| 3,331 |
| glycerophosphate |
| 3,200 |
| glycinate |
| 2,837 |
| malate |
| 2,574 |
| aspartate |
| 2,558 |
| citrate |
| 2,475 |
| sulfate |
| 1,981 |
| chloride |
| 1,567 |
| carbonate |
| 1,387 |
| hydroxide |
| 960 |
| oxide |
| 663 |
Data release 2026-08-10-f441aa9f · registry snapshot 2026-08-10 · latest price observation 2026-10-19 · chemistry 2026-10-17
Mass: 221 mg per tablet · Price: none matched · % DV: 95% vs 95%
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 is pressed into one tablet?
Solgar Magnesium with Vitamin B6 carries 663 mg of magnesium oxide per serving for 400 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 | 400 mg |
| Units per serving | 3 |
| Magnesium oxide per serving | 663 mg |
| Magnesium oxide per tablet | 221 mg |
| Capsule capacity 0 · 00 · 000 | 545 · 730 · 1,100 mg |
| Verdict | Capsule sizes do not apply |
Source · NIH DSLD 218431 · label 2020-04-23; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
How much elemental magnesium is actually in this label's filed magnesium lines?
Solgar Magnesium with Vitamin B6 files 1 magnesium line in NIH DSLD 218431; the selected primary line declares 400 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 |
|---|---|---|
| 400 mg | oxide · Magnesium (Form: as Magnesium Oxide) | Primary serving |
Source · NIH DSLD 218431 · label 2020-04-23; 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 filed magnesium line; 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% | filed magnesium line |
Source · NIH DSLD 218431 · label 2020-04-23; 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, Solgar Magnesium with Vitamin B6 lasts 83 days: 83 servings against 1 serving a day in the filed directions.
computed| Measure | Value |
|---|---|
| Net contents as filed | 250 Tablet(s) |
| Serving size as filed | 3 Tablet(s) |
| Servings per container | 83 |
| Servings per day in the directions | 1 |
| Days per bottle | 83 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 218431 · label 2020-04-23; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
What does "95% Daily Value" mean here, and does it recompute?
The label declares 95% Daily Value; 400 mg against the 420 mg reference in 21 CFR 101.9 recomputes to 95%, the same within one point.
computed| Group as filed | Declared | Reference | Recomputed |
|---|---|---|---|
| Adults and children 4 or more years of age | 95% | 420 mg | 95% |
Source · NIH DSLD 218431; 21 CFR 101.9 · label 2020-04-23 · release 2026-08-10-f441aa9f · CSV · method
Why does this label contain magnesium stearate, what shell is it, and who is it filed for?
Solgar Magnesium with Vitamin B6 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 30 of 61 oxide labels that list magnesium stearate.
measured| Entry | Filed ingredient or declaration |
|---|---|
| 1 | Microcrystalline Cellulose |
| 2 | Vegetable Cellulose |
| 3 | Vegetable Magnesium Stearate |
| 4 | Silica |
| 5 | Vegetable Glycerin |
| 6 | Titanium Dioxide color |
| Shell | vegetarian |
| Target group | Vegan |
6 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 | Dairy Free |
| Target group | Sugar Free |
Source · NIH DSLD 218431 · label 2020-04-23; 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?
Solgar has 2 FDA recall records matched by brand name in the enforcement data queried 2026-10-19. Solgar 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-0710-2015 | 2014-12-24 | NBTY has recalled ABC Dophlius Powder due to the presense of Rhizopus oryzae fungi. | Terminated |
| F-0803-2024 | 2024-02-07 | Nestle Health Science has initiated a recall of Solgar Glucosamine Chondroitin, 120 Tablets, in Glass bottle, 12 bottles per case because of error during packaging in which a A Megasorb B-Complex product was filled into bottles labeled as Glucosamine_Chondroitin MSM. | 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?
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 218431 · label 2020-04-23; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
Which labels are closest to this one, with the same salt and dose?
1 label use the same resolved oxide within ±10% of this label's 133 mg per unit, compared side by side on price and capsule verdict.
computed| Label | Elemental per unit | Price | Verdict |
|---|---|---|---|
| Solgar Magnesium with Vitamin B6 | 133 mg | No price | Capsule sizes do not apply |
Source · NIH DSLD 218431 · label 2020-04-23; 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 218431 (label 2020-04-23, 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 0 33984 01721 4). The CSV carries the values shown here.
measured| Field | As filed |
|---|---|
| NIH DSLD label | NIH DSLD 218431 |
| Label date | 2020-04-23 |
| Date entered into DSLD | 2020-04-23 |
| Barcode (UPC) as filed | 0 33984 01721 4 |
| Label version · Package size difference, same product | NIH DSLD 81088 |
| Label version · Package size difference, same product | NIH DSLD 201414 |
| Label version · Package size difference, same product | NIH DSLD 218430 |
| Label version · Package size difference, same product | NIH DSLD 44586 |
29 additional rows
| Field | As filed |
|---|---|
| Label version · Package size difference, same product | NIH DSLD 79374 |
| Label version · Image difference, same product | NIH DSLD 79374 |
| Label version · Package size difference, same product | NIH DSLD 44585 |
| Label version · Image difference, same product | NIH DSLD 44586 |
| Carefully Manufactured by | Solgar, Inc., Leonia, NJ, U.S.A. |
| Claim category as filed | Nutrient |
| Claim category as filed | All Other |
| Claim category as filed | Structure/Function |
| Formulation re: Other | Magnesium helps to regulate calcium transport and absorption. By stimulating the secretion of calcitonin, it aids the influx of calcium into bone and promotes optimal bone mineralization. Along with ATP, magnesium supports cellular energy release. It also promotes nerve and muscle function. |
| Formula re: Contains | This formulation offers Vitamin B6 to support energy metabolism and nervous system health in the body. |
| 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. |
| Brand IP Statement(s) re: (c), (TM), (SM) | 2019 Solgar, Inc. |
| General Statements: All Other Content | Solgar since 1947 |
| Formulation re: Other | Promotes healthy bone mineralization Supports nerve & muscle function |
| Formulation re: Does NOT Contain | Non-GMO Gluten, wheat & dairy free |
| Formulation re: Vegetarian/Vegan | Suitable for vegans |
| Seals/Symbols | GF Certified Gluten-free K Parve (Kosher) |
| FDA Statement of Identity | Dietary Supplement |
| General Statements: All Other Content | DV = Daily Value |
| Formulation re: Does NOT Contain | Free of: Gluten, wheat, dairy, soy, yeast, sugar, sodium, artificial flavor and sweetener. |
| Suggested/Recommended/Usage/Directions | Suggested Use: As a dietary supplement for adults, take three (3) tablets daily, preferably with a meal or as directed by a healthcare practitioner. |
| Precautions re: Pregnant or Nursing or Prescription Medications | If you are pregnant, nursing, taking any medications or have any medical condition, please consult your healthcare practitioner before taking any dietary supplement. |
| Precautions re: All Other | Discontinue use and consult your healthcare practitioner if any adverse reactions occur. |
| Precautions re: Children | Keep out of reach of children. |
| Storage | Store at room temperature. |
| Precautions re: All Other | Do not use if outer bottle seal is missing or damaged. |
| Formula re: Kosher | Solgar’s KOF-K certification #K-1250 |
| Physical state | Tablet or Pill |
| Registry snapshot | 2026-08-10 |
Source · NIH DSLD 218431 · label 2020-04-23; 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.