Label arithmetic · NIH DSLD 26518
Metagenics Cal Apatite with Magnesium: 100 mg of magnesium per tablet, 3 tablets a day – amino acid chelate + aspartate + citrate + glycinate
100 mg of magnesium per tablet; the label's 3 tablets a day give 300 mg. Inside: label lines, ingredients.
Metagenics Cal Apatite with Magnesium declares 300 mg of elemental magnesium from an amino acid chelate. "Amino acid chelate" names a class of compounds rather than one defined substance, so no elemental fraction exists and the compound mass cannot be computed from the label. No US retail price matched as of 2026-11-02. NIH DSLD 26518, label dated 2013-10-25.
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: 75% 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: buffered, complex, blend or asporotate wording leaves the composition unresolved.. 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 26518 · label 2013-10-25; 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 Cal Apatite with Magnesium files 1 magnesium line in NIH DSLD 26518; 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 | amino acid chelate, aspartate, bis-glycinate, citrate · Magnesium (Form: as magnesium citrate, magnesium aspartate, and magnesium bis-glycinate Note: Our proprietary fully reacted magnesium amino acid chelate. U.S. Patent No. 5,516,925 Albion) | Primary serving |
Source · NIH DSLD 26518 · label 2013-10-25; 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?
The label names 4 magnesium forms (amino-acid-chelate, aspartate, citrate, glycinate); a named blend does not establish how much magnesium each form contributes, so the resolved reading is the most favourable one, compared with oxide, the salt richest in magnesium at 60.3%.
computed with assumption| Form named on the label | Elemental fraction | Source |
|---|---|---|
| amino-acid-chelate | No defined fraction | named on label |
| Magnesium aspartate | 7.5–15.6% | named on label |
| Magnesium citrate | 11.3–16.2% | named on label |
| Magnesium glycinate | 11.8–14.1% | named on label |
Source · NIH DSLD 26518 · label 2013-10-25; 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 Cal Apatite with Magnesium lasts 30 days: 30 servings against 1 serving a day in the filed directions.
computed| Measure | Value |
|---|---|
| Net contents as filed | 90 Tablet(s) |
| Serving size as filed | 3 Tablet(s) |
| Servings per container | 30 |
| Servings per day in the directions | 1 |
| 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 26518 · label 2013-10-25; snapshot 2026-08-10 · release 2026-08-10-f441aa9f · CSV · method
What does "75% Daily Value" mean here, and does it recompute?
The label declares 75% Daily Value; 300 mg against the 420 mg reference in 21 CFR 101.9 recomputes to 71%, a difference of 4 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 |
| 71 · 75 |
| Declared vs |
| recomputed % DV |
| Group as filed | Declared | Reference | Recomputed |
|---|---|---|---|
| Adults and children 4 or more years of age | 75% | 420 mg | 71% |
Source · NIH DSLD 26518; 21 CFR 101.9 · label 2013-10-25 · 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 Cal Apatite with Magnesium files 7 other ingredients and a vegetarian shell.
measured| Entry | Filed ingredient or declaration |
|---|---|
| 1 | Microcrystalline Cellulose |
| 2 | Croscarmellose Sodium |
| 3 | Sodium Starch Glycolate |
| 4 | Cellulose |
| 5 | Stearic Acid |
| 6 | Silica |
| 7 | Coating |
| Shell | vegetarian |
3 additional rows
| Entry | Filed ingredient or declaration |
|---|---|
| Target group | Adult (18 - 50 Years) |
| Target group | Gluten Free |
| Target group | Dairy Free |
Source · NIH DSLD 26518 · label 2013-10-25; 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 26518 · label 2013-10-25; 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 26518 · label 2013-10-25; 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 26518 (label 2013-10-25, 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: buffered, complex, blend or asporotate wording leaves the composition unresolved.; No US retail price matched as of 2026-11-02 (barcode 7 55571 01305 7); 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 26518 |
| Label date | 2013-10-25 |
| Date entered into DSLD | 2013-10-25 |
| Barcode (UPC) as filed | 7 55571 01305 7 |
| Label version · Package size difference, same product | NIH DSLD 26519 |
| Developed and Manufactured by: | METAGENICS, INC. Makers of Professional Quality Supplements, San Clemente, CA |
| Claim category as filed | Nutrient |
| Claim category as filed | All Other |
17 additional rows
| Field | As filed |
|---|---|
| Claim category as filed | Approved Health |
| Claim category as filed | Structure/Function |
| Formula re: Contains | Cal Apatite(R) with Magnesium |
| General Statements: All Other Content | Cal Apatite with Magnesium features and exclusive; freeze-dried MCHC that ensures higher levels of intact bone growth factors than other MCHC formulas. This unique formula provides optimized levels of vitamin D and a blend of three forms of magnesium designed to be bioavailable to achieve a 2:1 calcium to magnesium ratio for comprehensive musculoskeletal support. |
| Brand IP Statement(s) re: (c), (TM), (SM) | Cal Apatite(R) with Magnesium provides advanced, bioactive support for healthy bone mineralization with microcrystalline hydroxyapatite concentrate (MCHC) - a calcium rich, bone-derived supplement that provides a full spectrum of highly absorbable macro- and trace minerals, Type 1 collagen protein, the intact portion of bone, and bioactive bone growth factors. |
| 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 tablets daily or as directed by your healthcare practitioner. |
| Precautions re: Children | CAUTION: Keep out of the reach of children. |
| General Statements: All Other Content | PROD. CA024 |
| Formulation re: Does NOT Contain | Formulated to Exclude: Wheat, gluten, corn protein, soy, dairy products, nuts, tree nuts, fish, crustacean shellfish, colors, artificial sweeteners, and preservatives. |
| General Statements: All Other Content | Genetic Potential Through Nutrition |
| Formula re: Contains | Complete Bone Nutrition with Magnesium |
| FDA Statement of Identity | Dietary Supplement |
| Seals/Symbols | PURITY CERTIFIED P THIRD PARTY ASSAYED |
| General Statements: All Other Content | LCA02503 0110106 2/12 |
| Physical state | Tablet or Pill |
| Registry snapshot | 2026-08-10 |
Source · NIH DSLD 26518 · label 2013-10-25; 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.