Label arithmetic · NIH DSLD 201834
The Vitamin Shoppe Magnesium Glycinate 400 mg: 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.
The Vitamin Shoppe Magnesium Glycinate 400 mg was observed at $19.99 on 2026-11-02; a cost per 100 mg of elemental magnesium is not computed for it because pack size differs: the offer lists 135 units, the label 180; label versions on this offer disagree on units per serving. The observation stays visible and enters no ranking. NIH DSLD 201834, label dated 2019-05-28.
as filed
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 2026-11-02 · chemistry 2026-10-17
Mass: 946–1,127 mg per tablet · Price: on review · % 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 glycinate is pressed into one tablet?
The Vitamin Shoppe Magnesium Glycinate 400 mg carries 2,837–3,381 mg of magnesium glycinate 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 glycinate per serving | 2,837–3,381 mg |
| Magnesium glycinate per tablet | 946–1,127 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 (bisglycinate; chelate hydration varies by supplier), so the compound mass is a range.
Source · NIH DSLD 201834 · label 2019-05-28; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
How much elemental magnesium is actually in this label's filed magnesium lines?
The Vitamin Shoppe Magnesium Glycinate 400 mg files 1 magnesium line in NIH DSLD 201834; 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 | glycinate · Magnesium (Form: as Magnesium Glycinate) | Primary serving |
Source · NIH DSLD 201834 · label 2019-05-28; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
Does this label's glycinate claim hold up, or could the magnesium come from another source?
The label names one magnesium form, glycinate, 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 glycinate | 11.8–14.1% | filed magnesium line |
Source · NIH DSLD 201834 · label 2019-05-28; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
Is this a good price for the elemental magnesium I'm actually getting?
The Vitamin Shoppe Magnesium Glycinate 400 mg was observed at $19.99 on 2026-11-02, but no cost per 100 mg is computed because pack size differs: the offer lists 135 units, the label 180; label versions on this offer disagree on units per serving; against 17 ranked glycinate offers with a median of $0.1889.
computed
Chart data
| Displayed chart text |
|---|
| n=17 |
| P25 $0.1338 |
| P75 $0.2216 |
| median $0.1889 |
| Rank | Label | Per 100 mg | Observed |
|---|---|---|---|
| 1 | Amazon Elements Chelated Magnesium 270 mg | $0.0666 | 2026-11-02 |
| 2 | Solgar Chelated Magnesium | $0.0930 | 2026-11-02 |
| 3 | tnvitamins Magnesium Glycinate 300 mg | $0.0962 | 2026-11-02 |
| 4 | New Chapter Magnesium + Ashwagandha | $0.1229 | 2026-11-02 |
| 5 | Windmill Magnesium Glycinate 200 mg | $0.1338 | 2026-11-02 |
| On review | The Vitamin Shoppe Magnesium Glycinate 400 mg (this label) | Not computed | 2026-11-02 |
| Median | 17 ranked glycinate offers | $0.1889 | 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, The Vitamin Shoppe Magnesium Glycinate 400 mg lasts 60 days: 60 servings against 1 serving a day in the filed directions.
computed| Measure | Value |
|---|---|
| Net contents as filed | 180 Tablet(s) |
| Serving size as filed | 3 Tablet(s) |
| Servings per container | 60 |
| Servings per day in the directions | 1 |
| Days per bottle | 60 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 201834 · label 2019-05-28; 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 201834; 21 CFR 101.9 · label 2019-05-28 · release 2026-08-10-f441aa9f · CSV · method
Why does this label contain magnesium stearate, what shell is it, and who is it filed for?
The Vitamin Shoppe Magnesium Glycinate 400 mg 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 28 of 73 glycinate labels that list magnesium stearate.
measured| Entry | Filed ingredient or declaration |
|---|---|
| 1 | Microcrystalline Cellulose |
| 2 | Stearic Acid |
| 3 | Aqueous Coating |
| 4 | Croscarmellose Sodium |
| 5 | Silicon Dioxide |
| 6 | Magnesium Stearate |
| Shell | vegetarian |
| Target group | Adult (18 - 50 Years) |
3 additional rows
| Entry | Filed ingredient or declaration |
|---|---|
| Target group | Gluten Free |
| Target group | Dairy Free |
| Target group | Sugar Free |
Source · NIH DSLD 201834 · label 2019-05-28; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
What has research measured about glycinate, and about side effects?
6 studies in the PubMed-checked registry measured outcomes involving glycinate; 2 mention gastrointestinal or adverse outcomes. They measured the salt, not this label.
measured| Year | Study | PubMed |
|---|---|---|
| 2024 | Comparative Clinical Study on Magnesium Absorption and Side Effects After Oral Intake of Microencapsulated Magnesium (MAGSHAPE™ Microcapsules) Versus Other Magnesium Sources. | 39770988 |
| 2024 | The bioaccessibility and tolerability of marine-derived sources of magnesium and calcium. | 38608850 |
| 2020 | Dose-Dependent Absorption Profile of Different Magnesium Compounds | 30761462 |
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?
The Vitamin Shoppe has 1 FDA recall record matched by brand name in the enforcement data queried 2026-10-19. The Vitamin Shoppe 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-1143-2020 | 2020-08-12 | Sample analysis revealed product is sub-potent for Vitamin D | 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 201834 · label 2019-05-28; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
Which labels are closest to this one, with the same salt and dose?
5 labels use the same resolved glycinate 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 |
|---|---|---|---|
| The Vitamin Shoppe Magnesium Glycinate 400 mg | 133 mg | $34.99 · 2026-11-02 | Capsule sizes do not apply |
| Woodstock Vitamins Magnesium Glycinate 400 mg | 133 mg | No price | Needs size 000 |
| Amazon Elements Chelated Magnesium 270 mg | 135 mg | $21.59 · 2026-11-02 | Capsule sizes do not apply |
| Metabolic Maintenance Magnesium Glycinate (DSLD 25018) | 125 mg | No price | Needs size 000 |
| Metabolic Maintenance Magnesium Glycinate (DSLD 274078) | 125 mg | $42.50 · 2026-11-02 | Needs size 000 |
Source · NIH DSLD 201834 · label 2019-05-28; 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 201834 (label 2019-05-28, snapshot 2026-08-10), a price observed 2026-11-02 and the chemistry model of 2026-09-13. No data gap remains for the computed fields. The CSV carries the values shown here.
measured| Field | As filed |
|---|---|
| NIH DSLD label | NIH DSLD 201834 |
| Label date | 2019-05-28 |
| Date entered into DSLD | 2019-05-28 |
| Barcode (UPC) as filed | 7 66536 03765 0 |
| Label version · Package size difference, same product | NIH DSLD 201832 |
| Distributed by | Vitamin Shoppe, Inc., Secaucus, NJ |
| Claim category as filed | All Other |
| Claim category as filed | Structure/Function |
16 additional rows
| Field | As filed |
|---|---|
| Formula re: Contains | Magnesium Glycinate 400 mg per 3 tablets |
| General Statements: All Other Content | Mineral |
| FDA Statement of Identity | Dietary Supplement |
| General Statements: All Other Content | Energy production Muscle relaxation Heart health |
| Formulation re: Does NOT Contain | Gluten free Dairy free Soy free Nut free Does not contain: Gluten, sugar, salt, preservatives, artificial colors or flavors. |
| 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. |
| Suggested/Recommended/Usage/Directions | Directions: Take three (3) tablets daily with a meal or a glass of water. |
| Precautions re: Pregnant or Nursing or Prescription Medications | Warning: Consult your healthcare provider prior to use if you are pregnant, nursing, taking any medication or have any medical condition. |
| Storage | Store in a cool, dry place. |
| Precautions re: Children | Keep out of reach of children. |
| Precautions re: All Other | Tamper evident Do not use if outer seal is broken or missing. |
| General Statements: All Other Content | Visit www.vitaminshoppe.com or call 1-800-223-1216 for more information and to reorder. |
| General: Product/Version Code | Item No. VS-3765 2171478 KS 37 |
| Seals/Symbols | Quality Promise Tested Trusted Guaranteed 30 day money back guarantee |
| Physical state | Tablet or Pill |
| Registry snapshot | 2026-08-10 |
Source · NIH DSLD 201834 · label 2019-05-28; 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.