Equal elemental amount · snapshot 2026-08-10
For 200 mg elemental magnesium, magnesium glycerophosphate requires 1,600 mg of compound and magnesium taurate requires 2,242 mg, using the chemistry accompanying the 2026-08-10 label snapshot. This difference follows from the magnesium fraction of each compound. It requires no absorption-study assumption: the same elemental mass travels with a different mass of the rest of the compound.
Show the working
At 100, 200 and 400 mg elemental magnesium, the chemistry accompanying the 2026-08-10 snapshot uses 12.50% magnesium by mass for magnesium glycerophosphate and 8.92% for magnesium taurate; dividing the elemental amount by these fractions gives the compound masses below.
| Property | Magnesium glycerophosphate | Magnesium taurate |
|---|---|---|
| Elemental Mg by compound mass | 12.50% | 8.92% |
| Anhydrous reference formula | MgC₃H₇O₆P | Mg(C₂H₆NO₃S)₂ |
| Molar mass of that reference formula | 194.36 g/mol | 272.58 g/mol |
| Composition interval | One formula fraction used for MgC₃H₇O₆P in this model. | One formula fraction used for Mg(C₂H₆NO₃S)₂ in this model. |
| Compound for 100 mg elemental Mg | 800 mg | 1,121 mg |
| Compound for 200 mg elemental Mg | 1,600 mg | 2,242 mg |
| Compound for 400 mg elemental Mg | 3,200 mg | 4,484 mg |
| Size 00 capsules for 100 mg elemental Mg | 2 capsules at 730 mg compound fill each | 2 capsules at 730 mg compound fill each |
| Size 00 capsules for 200 mg elemental Mg | 3 capsules at 730 mg compound fill each | 4 capsules at 730 mg compound fill each |
| Size 00 capsules for 400 mg elemental Mg | 5 capsules at 730 mg compound fill each | 7 capsules at 730 mg compound fill each |
Molar masses refer to the displayed anhydrous formulas. Hydrated or composition-ambiguous readings use the full fraction interval from the chemistry layer. Compound masses are rounded to whole milligrams; capsule counts round the unrounded mass divided by 730 mg upward at each interval endpoint.
For 200 mg elemental magnesium as magnesium glycerophosphate, the chemistry accompanying the 2026-08-10 snapshot requires 1,600 mg of compound: 200 ÷ 0.1250, rounded to whole milligrams.
That requires 3 size 00 capsules at 730 mg of compound per capsule, before other ingredients. The model uses the MgC₃H₇O₆P fraction throughout.
For 200 mg elemental magnesium as magnesium taurate, the chemistry accompanying the 2026-08-10 snapshot requires 2,242 mg of compound: 200 ÷ 0.0892, rounded to whole milligrams.
That requires 4 size 00 capsules at 730 mg of compound per capsule, before other ingredients. The model uses the Mg(C₂H₆NO₃S)₂ fraction throughout.
40 arithmetic inputs from 25 to 1,000 mg elemental magnesium are converted below using the two salt fractions and the capsule capacities accompanying the 2026-08-10 snapshot, calculated 2026-10-17. These are mass-conversion inputs, independent of any consumption schedule.
Each compound interval divides the elemental input by the high and low magnesium fractions. Each capsule interval divides those unrounded compound masses by the listed fill capacity, then rounds upward. The three capsule sizes use 545, 730 and 1100 mg of compound per capsule respectively, before other ingredients.
| Elemental Mg | Magnesium glycerophosphate: compound mass | Magnesium glycerophosphate: size 0 | Magnesium glycerophosphate: size 00 | Magnesium glycerophosphate: size 000 | Magnesium taurate: compound mass | Magnesium taurate: size 0 | Magnesium taurate: size 00 | Magnesium taurate: size 000 |
|---|---|---|---|---|---|---|---|---|
| 25 mg elemental Mg | 200 mg compound | 1 capsule at 545 mg fill | 1 capsule at 730 mg fill | 1 capsule at 1100 mg fill | 280 mg compound | 1 capsule at 545 mg fill | 1 capsule at 730 mg fill | 1 capsule at 1100 mg fill |
| 50 mg elemental Mg | 400 mg compound | 1 capsule at 545 mg fill | 1 capsule at 730 mg fill | 1 capsule at 1100 mg fill | 561 mg compound | 2 capsules at 545 mg fill | 1 capsule at 730 mg fill | 1 capsule at 1100 mg fill |
| 75 mg elemental Mg | 600 mg compound | 2 capsules at 545 mg fill | 1 capsule at 730 mg fill | 1 capsule at 1100 mg fill | 841 mg compound | 2 capsules at 545 mg fill | 2 capsules at 730 mg fill | 1 capsule at 1100 mg fill |
| 100 mg elemental Mg | 800 mg compound | 2 capsules at 545 mg fill | 2 capsules at 730 mg fill | 1 capsule at 1100 mg fill | 1,121 mg compound | 3 capsules at 545 mg fill | 2 capsules at 730 mg fill | 2 capsules at 1100 mg fill |
| 125 mg elemental Mg | 1,000 mg compound | 2 capsules at 545 mg fill | 2 capsules at 730 mg fill | 1 capsule at 1100 mg fill | 1,401 mg compound | 3 capsules at 545 mg fill | 2 capsules at 730 mg fill | 2 capsules at 1100 mg fill |
| 150 mg elemental Mg | 1,200 mg compound | 3 capsules at 545 mg fill | 2 capsules at 730 mg fill | 2 capsules at 1100 mg fill | 1,682 mg compound | 4 capsules at 545 mg fill | 3 capsules at 730 mg fill | 2 capsules at 1100 mg fill |
| 175 mg elemental Mg | 1,400 mg compound | 3 capsules at 545 mg fill | 2 capsules at 730 mg fill | 2 capsules at 1100 mg fill | 1,962 mg compound | 4 capsules at 545 mg fill | 3 capsules at 730 mg fill | 2 capsules at 1100 mg fill |
| 200 mg elemental Mg | 1,600 mg compound | 3 capsules at 545 mg fill | 3 capsules at 730 mg fill | 2 capsules at 1100 mg fill | 2,242 mg compound | 5 capsules at 545 mg fill | 4 capsules at 730 mg fill | 3 capsules at 1100 mg fill |
| 225 mg elemental Mg | 1,800 mg compound | 4 capsules at 545 mg fill | 3 capsules at 730 mg fill | 2 capsules at 1100 mg fill | 2,522 mg compound | 5 capsules at 545 mg fill | 4 capsules at 730 mg fill | 3 capsules at 1100 mg fill |
| 250 mg elemental Mg | 2,000 mg compound | 4 capsules at 545 mg fill | 3 capsules at 730 mg fill | 2 capsules at 1100 mg fill | 2,803 mg compound | 6 capsules at 545 mg fill | 4 capsules at 730 mg fill | 3 capsules at 1100 mg fill |
| 275 mg elemental Mg | 2,200 mg compound | 5 capsules at 545 mg fill | 4 capsules at 730 mg fill | 2 capsules at 1100 mg fill | 3,083 mg compound | 6 capsules at 545 mg fill | 5 capsules at 730 mg fill | 3 capsules at 1100 mg fill |
| 300 mg elemental Mg | 2,400 mg compound | 5 capsules at 545 mg fill | 4 capsules at 730 mg fill | 3 capsules at 1100 mg fill | 3,363 mg compound | 7 capsules at 545 mg fill | 5 capsules at 730 mg fill | 4 capsules at 1100 mg fill |
| 325 mg elemental Mg | 2,600 mg compound | 5 capsules at 545 mg fill | 4 capsules at 730 mg fill | 3 capsules at 1100 mg fill | 3,643 mg compound | 7 capsules at 545 mg fill | 5 capsules at 730 mg fill | 4 capsules at 1100 mg fill |
| 350 mg elemental Mg | 2,800 mg compound | 6 capsules at 545 mg fill | 4 capsules at 730 mg fill | 3 capsules at 1100 mg fill | 3,924 mg compound | 8 capsules at 545 mg fill | 6 capsules at 730 mg fill | 4 capsules at 1100 mg fill |
| 375 mg elemental Mg | 3,000 mg compound | 6 capsules at 545 mg fill | 5 capsules at 730 mg fill | 3 capsules at 1100 mg fill | 4,204 mg compound | 8 capsules at 545 mg fill | 6 capsules at 730 mg fill | 4 capsules at 1100 mg fill |
| 400 mg elemental Mg | 3,200 mg compound | 6 capsules at 545 mg fill | 5 capsules at 730 mg fill | 3 capsules at 1100 mg fill | 4,484 mg compound | 9 capsules at 545 mg fill | 7 capsules at 730 mg fill | 5 capsules at 1100 mg fill |
| 425 mg elemental Mg | 3,400 mg compound | 7 capsules at 545 mg fill | 5 capsules at 730 mg fill | 4 capsules at 1100 mg fill | 4,765 mg compound | 9 capsules at 545 mg fill | 7 capsules at 730 mg fill | 5 capsules at 1100 mg fill |
| 450 mg elemental Mg | 3,600 mg compound | 7 capsules at 545 mg fill | 5 capsules at 730 mg fill | 4 capsules at 1100 mg fill | 5,045 mg compound | 10 capsules at 545 mg fill | 7 capsules at 730 mg fill | 5 capsules at 1100 mg fill |
| 475 mg elemental Mg | 3,800 mg compound | 7 capsules at 545 mg fill | 6 capsules at 730 mg fill | 4 capsules at 1100 mg fill | 5,325 mg compound | 10 capsules at 545 mg fill | 8 capsules at 730 mg fill | 5 capsules at 1100 mg fill |
| 500 mg elemental Mg | 4,000 mg compound | 8 capsules at 545 mg fill | 6 capsules at 730 mg fill | 4 capsules at 1100 mg fill | 5,605 mg compound | 11 capsules at 545 mg fill | 8 capsules at 730 mg fill | 6 capsules at 1100 mg fill |
| 525 mg elemental Mg | 4,200 mg compound | 8 capsules at 545 mg fill | 6 capsules at 730 mg fill | 4 capsules at 1100 mg fill | 5,886 mg compound | 11 capsules at 545 mg fill | 9 capsules at 730 mg fill | 6 capsules at 1100 mg fill |
| 550 mg elemental Mg | 4,400 mg compound | 9 capsules at 545 mg fill | 7 capsules at 730 mg fill | 4 capsules at 1100 mg fill | 6,166 mg compound | 12 capsules at 545 mg fill | 9 capsules at 730 mg fill | 6 capsules at 1100 mg fill |
| 575 mg elemental Mg | 4,600 mg compound | 9 capsules at 545 mg fill | 7 capsules at 730 mg fill | 5 capsules at 1100 mg fill | 6,446 mg compound | 12 capsules at 545 mg fill | 9 capsules at 730 mg fill | 6 capsules at 1100 mg fill |
| 600 mg elemental Mg | 4,800 mg compound | 9 capsules at 545 mg fill | 7 capsules at 730 mg fill | 5 capsules at 1100 mg fill | 6,726 mg compound | 13 capsules at 545 mg fill | 10 capsules at 730 mg fill | 7 capsules at 1100 mg fill |
| 625 mg elemental Mg | 5,000 mg compound | 10 capsules at 545 mg fill | 7 capsules at 730 mg fill | 5 capsules at 1100 mg fill | 7,007 mg compound | 13 capsules at 545 mg fill | 10 capsules at 730 mg fill | 7 capsules at 1100 mg fill |
| 650 mg elemental Mg | 5,200 mg compound | 10 capsules at 545 mg fill | 8 capsules at 730 mg fill | 5 capsules at 1100 mg fill | 7,287 mg compound | 14 capsules at 545 mg fill | 10 capsules at 730 mg fill | 7 capsules at 1100 mg fill |
| 675 mg elemental Mg | 5,400 mg compound | 10 capsules at 545 mg fill | 8 capsules at 730 mg fill | 5 capsules at 1100 mg fill | 7,567 mg compound | 14 capsules at 545 mg fill | 11 capsules at 730 mg fill | 7 capsules at 1100 mg fill |
| 700 mg elemental Mg | 5,600 mg compound | 11 capsules at 545 mg fill | 8 capsules at 730 mg fill | 6 capsules at 1100 mg fill | 7,848 mg compound | 15 capsules at 545 mg fill | 11 capsules at 730 mg fill | 8 capsules at 1100 mg fill |
| 725 mg elemental Mg | 5,800 mg compound | 11 capsules at 545 mg fill | 8 capsules at 730 mg fill | 6 capsules at 1100 mg fill | 8,128 mg compound | 15 capsules at 545 mg fill | 12 capsules at 730 mg fill | 8 capsules at 1100 mg fill |
| 750 mg elemental Mg | 6,000 mg compound | 12 capsules at 545 mg fill | 9 capsules at 730 mg fill | 6 capsules at 1100 mg fill | 8,408 mg compound | 16 capsules at 545 mg fill | 12 capsules at 730 mg fill | 8 capsules at 1100 mg fill |
| 775 mg elemental Mg | 6,200 mg compound | 12 capsules at 545 mg fill | 9 capsules at 730 mg fill | 6 capsules at 1100 mg fill | 8,688 mg compound | 16 capsules at 545 mg fill | 12 capsules at 730 mg fill | 8 capsules at 1100 mg fill |
| 800 mg elemental Mg | 6,400 mg compound | 12 capsules at 545 mg fill | 9 capsules at 730 mg fill | 6 capsules at 1100 mg fill | 8,969 mg compound | 17 capsules at 545 mg fill | 13 capsules at 730 mg fill | 9 capsules at 1100 mg fill |
| 825 mg elemental Mg | 6,600 mg compound | 13 capsules at 545 mg fill | 10 capsules at 730 mg fill | 6 capsules at 1100 mg fill | 9,249 mg compound | 17 capsules at 545 mg fill | 13 capsules at 730 mg fill | 9 capsules at 1100 mg fill |
| 850 mg elemental Mg | 6,800 mg compound | 13 capsules at 545 mg fill | 10 capsules at 730 mg fill | 7 capsules at 1100 mg fill | 9,529 mg compound | 18 capsules at 545 mg fill | 14 capsules at 730 mg fill | 9 capsules at 1100 mg fill |
| 875 mg elemental Mg | 7,000 mg compound | 13 capsules at 545 mg fill | 10 capsules at 730 mg fill | 7 capsules at 1100 mg fill | 9,809 mg compound | 18 capsules at 545 mg fill | 14 capsules at 730 mg fill | 9 capsules at 1100 mg fill |
| 900 mg elemental Mg | 7,200 mg compound | 14 capsules at 545 mg fill | 10 capsules at 730 mg fill | 7 capsules at 1100 mg fill | 10,090 mg compound | 19 capsules at 545 mg fill | 14 capsules at 730 mg fill | 10 capsules at 1100 mg fill |
| 925 mg elemental Mg | 7,400 mg compound | 14 capsules at 545 mg fill | 11 capsules at 730 mg fill | 7 capsules at 1100 mg fill | 10,370 mg compound | 20 capsules at 545 mg fill | 15 capsules at 730 mg fill | 10 capsules at 1100 mg fill |
| 950 mg elemental Mg | 7,600 mg compound | 14 capsules at 545 mg fill | 11 capsules at 730 mg fill | 7 capsules at 1100 mg fill | 10,650 mg compound | 20 capsules at 545 mg fill | 15 capsules at 730 mg fill | 10 capsules at 1100 mg fill |
| 975 mg elemental Mg | 7,800 mg compound | 15 capsules at 545 mg fill | 11 capsules at 730 mg fill | 8 capsules at 1100 mg fill | 10,930 mg compound | 21 capsules at 545 mg fill | 15 capsules at 730 mg fill | 10 capsules at 1100 mg fill |
| 1000 mg elemental Mg | 8,000 mg compound | 15 capsules at 545 mg fill | 11 capsules at 730 mg fill | 8 capsules at 1100 mg fill | 11,211 mg compound | 21 capsules at 545 mg fill | 16 capsules at 730 mg fill | 11 capsules at 1100 mg fill |
A whole capsule count describes the minimum number of modelled containers needed to hold compound mass. It does not establish the dimensions, packing density or excipient content of a retail product. The ingredient list and serving statement on each linked record supply the product-specific context.
Declarations against capacity
In the 2026-08-10 snapshot, the magnesium glycerophosphate form group has 0 audited capsule labels and the magnesium taurate group has 2; their distributions below use the mass-budget counts stored for each form, at powder density 0.8 g/mL, the top of the usual 0.6–0.8 range.
| Salt group | All labels | Audited capsules | Fits 0/00 | Needs 000 | Exceeds 000 |
|---|---|---|---|---|---|
| Magnesium glycerophosphate | 0 | 0 | 0 | 0 | 0 |
| Magnesium taurate | 12 | 2 | 0 | 2 | 0 |
No US label in the NIH DSLD snapshot 2026-08-10 names magnesium glycerophosphate, so no capsule verdict is counted for it; the compound mass above is pure chemistry.
At 2026-08-10, magnesium taurate has 0 of 2 audited capsule labels at or below 730 mg minimum compound mass per capsule, 2 above 730 mg but at or below 1100 mg, and 0 above 1100 mg. Its other 10 labels have no capsule verdict in this group, either because they are not classified as capsules or because a mass budget is unavailable.
The audit divides a label's elemental amount by its assigned salt fraction and serving-unit count. It uses the highest fraction, hence the smallest required mass. A hydration interval can move a nominally fitting label into a larger size at its high-mass end. A result exceeding 000 means the assigned single salt exceeds this fill model even at the low-mass end.
Form groups include names in extracted primary rows, resolved salts and full-record salt mentions, and can overlap; a capsule verdict requires a single assigned salt matching this group. These are counts of label declarations, with the capsule model allocating the fill to the compound. Inspect individual serving statements and assigned salts in the audit register and the linked form pages.
Literature coverage
As of the literature review dated 2026-09-11, the supplied study collection associates 0 publications with magnesium glycerophosphate and 1 with magnesium taurate; the combined list contains 1 unique publications, with shared records printed once.
| Salt | Publications | Publication years |
|---|---|---|
| Magnesium glycerophosphate | 0 | No studies mapped as of 2026-09-11 |
| Magnesium taurate | 1 | 2019–2019 |
Membership means that at least one selected salt appears in the study's recorded coverage; it does not mean every paper directly compares this exact pair. In particular, an amino-acid-chelate arm does not establish a chemically defined bisglycinate preparation. Each record below retains its actual design, population, read-out and limits.
Published measurements · peer-reviewed sources
The 2026-09-11 literature review links these 1 publications, ordered newest first; study outcomes remain attached to their own experimental conditions.
These entries report what each study measured and on whom. They are not advice, not a ranking, and not a claim about any product on this site. Every reference links to its PubMed record so the original can be read in full.
8 of 12 labels mentioning magnesium taurate are shown in brand order from the supplied NIH DSLD records, calculated 2026-10-17. Salt mentions can overlap; only records assigned this single salt enter its capsule audit above.
| Brand / label | Salt / physical state | Filed serving | Observed item price / EC100 |
|---|---|---|---|
| BioCare Magnesium TaurateNIH DSLD 309746 · label 2024-06-20 | Magnesium taurateCapsule | 1 Capsule(s)146 mg elemental magnesium per serving | No published price matched to barcode 5 033290 183608 as of 2026-10-17. |
| Cardiovascular Research Magnesium TaurateNIH DSLD 22722 · label 2013-06-25 | Single salt unresolved as of 2026-10-17Capsule | 1–2 Capsule(s)125 mg elemental magnesium per serving | $25.26 per container; cost per 100 mg not computedObserved 2026-09-11 · provisional (pack size differs: the offer lists 180 units, the label 60; units per serving are not stated in discrete units) |
| Cardiovascular Research Magnesium TaurateNIH DSLD 22723 · label 2013-06-25 | Single salt unresolved as of 2026-10-17Capsule | 1 Capsule(s)125 mg elemental magnesium per serving | $32.90 per container; $0.1462 per 100 mgObserved 2026-10-26 · confirmed |
| Cardiovascular Research Magnesium TaurateNIH DSLD 283438 · label 2023-03-22 | Single salt unresolved as of 2026-10-17Capsule | 1 Capsule(s)125 mg elemental magnesium per serving | $32.90 per container; $0.1462 per 100 mgObserved 2026-10-26 · confirmed |
| Cardiovascular Research Magnesium TaurateNIH DSLD 304437 · label 2024-03-22 | Single salt unresolved as of 2026-10-17Capsule | 1 Capsule(s)125 mg elemental magnesium per serving | $32.90 per container; $0.1462 per 100 mgObserved 2026-10-26 · confirmed |
| Codeage Liposomal Magnesium Taurate+NIH DSLD 333426 · label 2025-06-25 | Single salt unresolved as of 2026-10-17Capsule | 2 Capsule(s)300 mg elemental magnesium per serving | $39.99 per container; $0.2222 per 100 mgObserved 2026-11-02 · confirmed |
| Douglas Laboratories Magnesium Taurate 400NIH DSLD 232184 · label 2020-08-23 | Magnesium taurateTablet or Pill | 4 Tablet(s)400 mg elemental magnesium per serving | No published price matched to barcode 3 10539 01274 1 as of 2026-10-17. |
| KAL Magnesium Taurate +NIH DSLD 322920 · label 2024-11-22 | Magnesium taurateTablet or Pill | 2 Tablet(s)400 mg elemental magnesium per serving | $24.79 per container; $0.1033 per 100 mgObserved 2026-11-02 · confirmed |
Open the salt index and linked records to inspect ingredient lists, the source of the assigned salt and dated gaps in price matching.
Retail observations · after chemistry and evidence
As of 2026-10-17, the published price set contains 0 verified magnesium glycerophosphate matches and 6 verified magnesium taurate matches. Each table below contains one salt and its own sample size; verified medians describe only that salt's verified rows.
EC100 = container price ÷ (declared elemental mg per serving × servings per container ÷ 100). It normalizes the container's elemental amount. The observations use one-time item prices, without coupons or subscriptions and excluding shipping. The tables retain the two salts' page order; sorting operates inside an individual salt table.
As of 2026-10-17, magnesium glycerophosphate has 0 verified matches and 0 pending matches in the price set. No verified median is available as of 2026-10-17. Observation dates: No published observations as of 2026-10-17.
0 verified retail matches are published for magnesium glycerophosphate as of 2026-10-17.
There are 0 pending price matches for magnesium glycerophosphate as of 2026-10-17.
As of 2026-10-17, magnesium taurate has 6 verified matches and 1 pending matches in the price set. Its verified EC100 median is $0.1842 per 100 mg elemental magnesium (n=6); pending matches are excluded from that median. Observation dates: 2026-09-11 to 2026-11-02.
| Cardiovascular Research | Magnesium TaurateNIH DSLD · Label 22723 | 125 mg | 180 | $32.90Per container · Price observed 2026-10-26, Amazon | $0.146222.50 total elemental g/container | Verified |
| Cardiovascular Research | Magnesium TaurateNIH DSLD · Label 283438 | 125 mg | 180 | $32.90Per container · Price observed 2026-10-26, Amazon | $0.146222.50 total elemental g/container | Verified |
| Cardiovascular Research | Magnesium TaurateNIH DSLD · Label 304437 | 125 mg | 60 | $32.90Per container · Price observed 2026-10-26, Amazon | $0.146222.50 total elemental g/container | Verified |
| KAL | Magnesium Taurate +NIH DSLD · Label 322920 | 400 mg | 90 | $24.79Per container · Price observed 2026-11-02, Amazon | $0.103324.00 total elemental g/container | Verified |
| Codeage | Liposomal Magnesium Taurate+NIH DSLD · Label 333426 | 300 mg | 60 | $39.99Per container · Price observed 2026-11-02, Amazon | $0.222218.00 total elemental g/container | Verified |
| Natural Rhythm | Magnesium TaurateNIH DSLD · Label 271261 | 150 mg | 60 | $23.95Per container · Price observed 2026-11-02, Amazon | $0.26619.00 total elemental g/container | Verified |
These candidate retail-to-label matches remain separate from verified rows and are not included in verified medians.
| Cardiovascular Research | Magnesium TaurateNIH DSLD · Label 22722 | 125 mg | 60 | $25.26Per container · Price observed 2026-09-11, Amazon | Not computedpack size differs: the offer lists 180 units, the label 60; units per serving are not stated in discrete units | Pending · provisional |
To reproduce a container calculation, use the elemental cost calculator and its static mass tables. The magnesium collection abstract connects each salt group to the label corpus; the literature collection puts the cited measurements in their broader study context.