Label arithmetic · NIH DSLD 323336
Metagenics Bone Builder with Magnesium: 100 mg of magnesium per tablet, 3 tablets a day (salt not resolved)
100 mg of magnesium per tablet; the label's 3 tablets a day give 300 mg. Salt not resolved from the NIH record. Inside: label lines, ingredients.
Metagenics Bone Builder with Magnesium declares 300 mg of elemental magnesium per 3 tablet(s); the magnesium salt is not resolved from the filed record, Single-salt capacity audit excluded as of 2026-10-17: one salt with a defined elemental fraction is not resolved., as of 2026-11-02. No US retail price matched as of 2026-11-02. NIH DSLD 323336, label dated 2025-02-23.
as filedData release 2026-08-10-f441aa9f · registry snapshot 2026-08-10 · latest price observation 2026-10-19 · chemistry 2026-10-17
Mass: not computable · Price: none matched · % DV: 71% vs 71%
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 magnesium compound is pressed into one tablet?
The compound mass behind this label cannot be computed as of 2026-11-02: Single-salt capacity audit excluded as of 2026-10-17: one salt with a defined elemental fraction is not resolved.. The filed amounts are listed in the next block.
computed with assumption| Measure | Value |
|---|---|
| Elemental magnesium per serving | 300 mg |
| Units per serving | 3 |
| Magnesium salt per serving | Not computable as of 2026-11-02 |
| Magnesium salt per tablet | Not computable as of 2026-11-02 |
| Capsule capacity 0 · 00 · 000 | 545 · 730 · 1,100 mg |
| Verdict | Not computable as of 2026-11-02 |
Source · NIH DSLD 323336 · label 2025-02-23; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
How much elemental magnesium is actually in this label's filed magnesium lines?
Metagenics Bone Builder with Magnesium files 1 magnesium line in NIH DSLD 323336; the selected primary line declares 300 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 |
|---|---|---|
| 300 mg | Salt not named in this row as of 2026-11-02 | Primary serving |
Source · NIH DSLD 323336 · label 2025-02-23; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
Does this label's magnesium claim hold up, or could the magnesium come from another source?
No single magnesium salt is resolved from the filed record as of 2026-11-02, so the source of the declared magnesium cannot be checked against capsule capacity, compared with oxide, the salt richest in magnesium at 60.3%.
computed with assumption| Form named on the label | Elemental fraction | Source |
|---|---|---|
| No form named as of 2026-11-02 | No defined fraction | named on label |
Source · NIH DSLD 323336 · label 2025-02-23; 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, and without a resolved salt there is no same-salt comparison.
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, Metagenics Bone Builder with Magnesium 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 323336 · label 2025-02-23; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
What does "71% Daily Value" mean here, and does it recompute?
The label declares 71% Daily Value; 300 mg against the 420 mg reference in 21 CFR 101.9 recomputes to 71%, the same within one point.
computed| Group as filed | Declared | Reference | Recomputed |
|---|---|---|---|
| Adults and children 4 or more years of age | 71% | 420 mg | 71% |
Source · NIH DSLD 323336; 21 CFR 101.9 · label 2025-02-23 · release 2026-08-10-f441aa9f · CSV · method
Why does this label contain these other ingredients, what shell is it, and who is it filed for?
Metagenics Bone Builder with Magnesium files 7 other ingredients and a vegetarian shell.
measured| Entry | Filed ingredient or declaration |
|---|---|
| 1 | Microcrystalline Cellulose |
| 2 | Sodium Starch Glycolate |
| 3 | Stearic Acid |
| 4 | Silica |
| 5 | Hypromellose |
| 6 | Medium Chain Triglyceride |
| 7 | Hydroxypropyl Cellulose |
| Shell | vegetarian |
2 additional rows
| Entry | Filed ingredient or declaration |
|---|---|
| Target group | Adult (18 - 50 Years) |
| Target group | Gluten Free |
Source · NIH DSLD 323336 · label 2025-02-23; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
What has research measured about this form, and about side effects?
No study in the registry measured an unresolved salt as of 2026-11-02.
measured| Year | Study | PubMed |
|---|
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?
Metagenics has 0 FDA recall records matched by brand name in the enforcement data queried 2026-10-19. Metagenics 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?
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 323336 · label 2025-02-23; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
Which labels are closest to this one, with the same salt and dose?
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 323336 · label 2025-02-23; 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 323336 (label 2025-02-23, snapshot 2026-08-10) and the chemistry model of 2026-09-13. 3 gaps remain: Single-salt capacity audit excluded as of 2026-10-17: one salt with a defined elemental fraction is not resolved.; No US retail price matched as of 2026-11-02 (barcode 7 55517 91010 3); A single salt with a defined elemental fraction is unresolved as of 2026-11-02. The CSV carries the values shown here.
measured| Field | As filed |
|---|---|
| NIH DSLD label | NIH DSLD 323336 |
| Scanned label (PDF) | Label 323336 scan |
| Label date | 2025-02-23 |
| Date entered into DSLD | 2025-02-23 |
| Barcode (UPC) as filed | 7 55517 91010 3 |
| Label version · Image difference, same product | NIH DSLD 216671 |
| Label version · Image difference, same product | NIH DSLD 267974 |
| Manufactured by | Metagenics, Gig Harbor, WA |
18 additional rows
| Field | As filed |
|---|---|
| Claim category as filed | Nutrient |
| Claim category as filed | All Other |
| Claim category as filed | Structure/Function |
| Formula re: Contains | Bone Builder with Magnesium provides bone health support with microcrystalline hydroxyapatite concentrate (MCHC), a highly absorbable crystalline compound comprised of naturally-occurring organic components of bone and is backed by over 30 years of research. MCHC contains naturally occurring calcium, phosphorus, and trace amounts of other minerals, bone growth factors, collagen and other vital bone proteins. This well-rounded formula is designed to support bone mineral density and also features vitamin D and magnesium for enhanced bone support and healthy muscle function. |
| Suggested/Recommended/Usage/Directions | Directions: Take three tablets once daily or as directed by your healthcare practitioner. |
| Formulation re: Does NOT Contain | This product is non-GMO and gluten-free. |
| Precautions re: Pregnant or Nursing or Prescription Medications | Caution: If pregnant, nursing, or taking medication, consult your healthcare practitioner before use. |
| Precautions re: Children | Keep out of reach of children. |
| Precautions re: All Other | Tamper Evident: Do not use if safety seal is missing or broken. |
| Storage | Storage: Keep tightly closed in a cool, dry place. |
| Seals/Symbols | Certified Gluten Free GFCO.org |
| Formulation re: Does NOT Contain | Certified Gluten Free GFCO.org |
| 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: Other | Enhanced bone support |
| FDA Statement of Identity | Dietary Supplement |
| General Statements: All Other Content | Practitioner exclusive |
| Physical state | Tablet or Pill |
| Registry snapshot | 2026-08-10 |
Source · NIH DSLD 323336 · label 2025-02-23; 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.