Equal elemental amount · snapshot 2026-08-10

Magnesium orotate vs Magnesium L-threonate

For 200 mg elemental magnesium, magnesium orotate requires 2,751 mg of compound and magnesium l-threonate requires 2,424 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

Same elemental amount, different compound mass

At 100, 200 and 400 mg elemental magnesium, the chemistry accompanying the 2026-08-10 snapshot uses 7.27% magnesium by mass for magnesium orotate and 8.25% for magnesium l-threonate; dividing the elemental amount by these fractions gives the compound masses below.

Formula, magnesium fraction and compound mass · snapshot context 2026-08-10
PropertyMagnesium orotateMagnesium L-threonate
Elemental Mg by compound mass7.27%8.25%
Anhydrous reference formulaMg(C₅H₃N₂O₄)₂Mg(C₄H₇O₅)₂
Molar mass of that reference formula334.49 g/mol294.50 g/mol
Composition intervalOne formula fraction used for Mg(C₅H₃N₂O₄)₂ in this model.One formula fraction used for Mg(C₄H₇O₅)₂ in this model.
Compound for 100 mg elemental Mg1,376 mg1,212 mg
Compound for 200 mg elemental Mg2,751 mg2,424 mg
Compound for 400 mg elemental Mg5,502 mg4,848 mg
Size 00 capsules for 100 mg elemental Mg2 capsules at 730 mg compound fill each2 capsules at 730 mg compound fill each
Size 00 capsules for 200 mg elemental Mg4 capsules at 730 mg compound fill each4 capsules at 730 mg compound fill each
Size 00 capsules for 400 mg elemental Mg8 capsules at 730 mg compound fill each7 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.

Magnesium orotate: 200 mg worked example

For 200 mg elemental magnesium as magnesium orotate, the chemistry accompanying the 2026-08-10 snapshot requires 2,751 mg of compound: 200 ÷ 0.0727, 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(C₅H₃N₂O₄)₂ fraction throughout.

Magnesium L-threonate: 200 mg worked example

For 200 mg elemental magnesium as magnesium l-threonate, the chemistry accompanying the 2026-08-10 snapshot requires 2,424 mg of compound: 200 ÷ 0.0825, 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(C₄H₇O₅)₂ fraction throughout.

Compound mass reference in 25 mg elemental increments

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 2026-09-13. 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.

Magnesium orotate and Magnesium L-threonate · 40 elemental inputs · 2026-09-13
Elemental MgMagnesium orotate: compound massMagnesium orotate: size 0Magnesium orotate: size 00Magnesium orotate: size 000Magnesium L-threonate: compound massMagnesium L-threonate: size 0Magnesium L-threonate: size 00Magnesium L-threonate: size 000
25 mg elemental Mg344 mg compound1 capsules at 545 mg fill1 capsules at 730 mg fill1 capsules at 1100 mg fill303 mg compound1 capsules at 545 mg fill1 capsules at 730 mg fill1 capsules at 1100 mg fill
50 mg elemental Mg688 mg compound2 capsules at 545 mg fill1 capsules at 730 mg fill1 capsules at 1100 mg fill606 mg compound2 capsules at 545 mg fill1 capsules at 730 mg fill1 capsules at 1100 mg fill
75 mg elemental Mg1,032 mg compound2 capsules at 545 mg fill2 capsules at 730 mg fill1 capsules at 1100 mg fill909 mg compound2 capsules at 545 mg fill2 capsules at 730 mg fill1 capsules at 1100 mg fill
100 mg elemental Mg1,376 mg compound3 capsules at 545 mg fill2 capsules at 730 mg fill2 capsules at 1100 mg fill1,212 mg compound3 capsules at 545 mg fill2 capsules at 730 mg fill2 capsules at 1100 mg fill
125 mg elemental Mg1,719 mg compound4 capsules at 545 mg fill3 capsules at 730 mg fill2 capsules at 1100 mg fill1,515 mg compound3 capsules at 545 mg fill3 capsules at 730 mg fill2 capsules at 1100 mg fill
150 mg elemental Mg2,063 mg compound4 capsules at 545 mg fill3 capsules at 730 mg fill2 capsules at 1100 mg fill1,818 mg compound4 capsules at 545 mg fill3 capsules at 730 mg fill2 capsules at 1100 mg fill
175 mg elemental Mg2,407 mg compound5 capsules at 545 mg fill4 capsules at 730 mg fill3 capsules at 1100 mg fill2,121 mg compound4 capsules at 545 mg fill3 capsules at 730 mg fill2 capsules at 1100 mg fill
200 mg elemental Mg2,751 mg compound6 capsules at 545 mg fill4 capsules at 730 mg fill3 capsules at 1100 mg fill2,424 mg compound5 capsules at 545 mg fill4 capsules at 730 mg fill3 capsules at 1100 mg fill
225 mg elemental Mg3,095 mg compound6 capsules at 545 mg fill5 capsules at 730 mg fill3 capsules at 1100 mg fill2,727 mg compound6 capsules at 545 mg fill4 capsules at 730 mg fill3 capsules at 1100 mg fill
250 mg elemental Mg3,439 mg compound7 capsules at 545 mg fill5 capsules at 730 mg fill4 capsules at 1100 mg fill3,030 mg compound6 capsules at 545 mg fill5 capsules at 730 mg fill3 capsules at 1100 mg fill
275 mg elemental Mg3,783 mg compound7 capsules at 545 mg fill6 capsules at 730 mg fill4 capsules at 1100 mg fill3,333 mg compound7 capsules at 545 mg fill5 capsules at 730 mg fill4 capsules at 1100 mg fill
300 mg elemental Mg4,127 mg compound8 capsules at 545 mg fill6 capsules at 730 mg fill4 capsules at 1100 mg fill3,636 mg compound7 capsules at 545 mg fill5 capsules at 730 mg fill4 capsules at 1100 mg fill
325 mg elemental Mg4,470 mg compound9 capsules at 545 mg fill7 capsules at 730 mg fill5 capsules at 1100 mg fill3,939 mg compound8 capsules at 545 mg fill6 capsules at 730 mg fill4 capsules at 1100 mg fill
350 mg elemental Mg4,814 mg compound9 capsules at 545 mg fill7 capsules at 730 mg fill5 capsules at 1100 mg fill4,242 mg compound8 capsules at 545 mg fill6 capsules at 730 mg fill4 capsules at 1100 mg fill
375 mg elemental Mg5,158 mg compound10 capsules at 545 mg fill8 capsules at 730 mg fill5 capsules at 1100 mg fill4,545 mg compound9 capsules at 545 mg fill7 capsules at 730 mg fill5 capsules at 1100 mg fill
400 mg elemental Mg5,502 mg compound11 capsules at 545 mg fill8 capsules at 730 mg fill6 capsules at 1100 mg fill4,848 mg compound9 capsules at 545 mg fill7 capsules at 730 mg fill5 capsules at 1100 mg fill
425 mg elemental Mg5,846 mg compound11 capsules at 545 mg fill9 capsules at 730 mg fill6 capsules at 1100 mg fill5,152 mg compound10 capsules at 545 mg fill8 capsules at 730 mg fill5 capsules at 1100 mg fill
450 mg elemental Mg6,190 mg compound12 capsules at 545 mg fill9 capsules at 730 mg fill6 capsules at 1100 mg fill5,455 mg compound11 capsules at 545 mg fill8 capsules at 730 mg fill5 capsules at 1100 mg fill
475 mg elemental Mg6,534 mg compound12 capsules at 545 mg fill9 capsules at 730 mg fill6 capsules at 1100 mg fill5,758 mg compound11 capsules at 545 mg fill8 capsules at 730 mg fill6 capsules at 1100 mg fill
500 mg elemental Mg6,878 mg compound13 capsules at 545 mg fill10 capsules at 730 mg fill7 capsules at 1100 mg fill6,061 mg compound12 capsules at 545 mg fill9 capsules at 730 mg fill6 capsules at 1100 mg fill
525 mg elemental Mg7,221 mg compound14 capsules at 545 mg fill10 capsules at 730 mg fill7 capsules at 1100 mg fill6,364 mg compound12 capsules at 545 mg fill9 capsules at 730 mg fill6 capsules at 1100 mg fill
550 mg elemental Mg7,565 mg compound14 capsules at 545 mg fill11 capsules at 730 mg fill7 capsules at 1100 mg fill6,667 mg compound13 capsules at 545 mg fill10 capsules at 730 mg fill7 capsules at 1100 mg fill
575 mg elemental Mg7,909 mg compound15 capsules at 545 mg fill11 capsules at 730 mg fill8 capsules at 1100 mg fill6,970 mg compound13 capsules at 545 mg fill10 capsules at 730 mg fill7 capsules at 1100 mg fill
600 mg elemental Mg8,253 mg compound16 capsules at 545 mg fill12 capsules at 730 mg fill8 capsules at 1100 mg fill7,273 mg compound14 capsules at 545 mg fill10 capsules at 730 mg fill7 capsules at 1100 mg fill
625 mg elemental Mg8,597 mg compound16 capsules at 545 mg fill12 capsules at 730 mg fill8 capsules at 1100 mg fill7,576 mg compound14 capsules at 545 mg fill11 capsules at 730 mg fill7 capsules at 1100 mg fill
650 mg elemental Mg8,941 mg compound17 capsules at 545 mg fill13 capsules at 730 mg fill9 capsules at 1100 mg fill7,879 mg compound15 capsules at 545 mg fill11 capsules at 730 mg fill8 capsules at 1100 mg fill
675 mg elemental Mg9,285 mg compound18 capsules at 545 mg fill13 capsules at 730 mg fill9 capsules at 1100 mg fill8,182 mg compound16 capsules at 545 mg fill12 capsules at 730 mg fill8 capsules at 1100 mg fill
700 mg elemental Mg9,629 mg compound18 capsules at 545 mg fill14 capsules at 730 mg fill9 capsules at 1100 mg fill8,485 mg compound16 capsules at 545 mg fill12 capsules at 730 mg fill8 capsules at 1100 mg fill
725 mg elemental Mg9,972 mg compound19 capsules at 545 mg fill14 capsules at 730 mg fill10 capsules at 1100 mg fill8,788 mg compound17 capsules at 545 mg fill13 capsules at 730 mg fill8 capsules at 1100 mg fill
750 mg elemental Mg10,316 mg compound19 capsules at 545 mg fill15 capsules at 730 mg fill10 capsules at 1100 mg fill9,091 mg compound17 capsules at 545 mg fill13 capsules at 730 mg fill9 capsules at 1100 mg fill
775 mg elemental Mg10,660 mg compound20 capsules at 545 mg fill15 capsules at 730 mg fill10 capsules at 1100 mg fill9,394 mg compound18 capsules at 545 mg fill13 capsules at 730 mg fill9 capsules at 1100 mg fill
800 mg elemental Mg11,004 mg compound21 capsules at 545 mg fill16 capsules at 730 mg fill11 capsules at 1100 mg fill9,697 mg compound18 capsules at 545 mg fill14 capsules at 730 mg fill9 capsules at 1100 mg fill
825 mg elemental Mg11,348 mg compound21 capsules at 545 mg fill16 capsules at 730 mg fill11 capsules at 1100 mg fill10,000 mg compound19 capsules at 545 mg fill14 capsules at 730 mg fill10 capsules at 1100 mg fill
850 mg elemental Mg11,692 mg compound22 capsules at 545 mg fill17 capsules at 730 mg fill11 capsules at 1100 mg fill10,303 mg compound19 capsules at 545 mg fill15 capsules at 730 mg fill10 capsules at 1100 mg fill
875 mg elemental Mg12,036 mg compound23 capsules at 545 mg fill17 capsules at 730 mg fill11 capsules at 1100 mg fill10,606 mg compound20 capsules at 545 mg fill15 capsules at 730 mg fill10 capsules at 1100 mg fill
900 mg elemental Mg12,380 mg compound23 capsules at 545 mg fill17 capsules at 730 mg fill12 capsules at 1100 mg fill10,909 mg compound21 capsules at 545 mg fill15 capsules at 730 mg fill10 capsules at 1100 mg fill
925 mg elemental Mg12,724 mg compound24 capsules at 545 mg fill18 capsules at 730 mg fill12 capsules at 1100 mg fill11,212 mg compound21 capsules at 545 mg fill16 capsules at 730 mg fill11 capsules at 1100 mg fill
950 mg elemental Mg13,067 mg compound24 capsules at 545 mg fill18 capsules at 730 mg fill12 capsules at 1100 mg fill11,515 mg compound22 capsules at 545 mg fill16 capsules at 730 mg fill11 capsules at 1100 mg fill
975 mg elemental Mg13,411 mg compound25 capsules at 545 mg fill19 capsules at 730 mg fill13 capsules at 1100 mg fill11,818 mg compound22 capsules at 545 mg fill17 capsules at 730 mg fill11 capsules at 1100 mg fill
1000 mg elemental Mg13,755 mg compound26 capsules at 545 mg fill19 capsules at 730 mg fill13 capsules at 1100 mg fill12,121 mg compound23 capsules at 545 mg fill17 capsules at 730 mg fill12 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

How each salt's capsule labels distribute

In the 2026-08-10 snapshot, the magnesium orotate form group has 5 audited capsule labels and the magnesium l-threonate group has 6; their distributions below use the mass-budget counts stored for each form, at powder density 0.6–0.8 g/mL.

Capsule mass budgets within each form group · 2026-08-10
Salt groupAll labelsAudited capsulesFits 0/00Needs 000Exceeds 000
Magnesium orotate85401
Magnesium L-threonate96501

At 2026-08-10, magnesium orotate has 4 of 5 audited capsule labels at or below 730 mg minimum compound mass per capsule, 0 above 730 mg but at or below 1100 mg, and 1 above 1100 mg. Its other 3 labels have no capsule verdict in this group, either because they are not classified as capsules or because a mass budget is unavailable.

At 2026-08-10, magnesium l-threonate has 5 of 6 audited capsule labels at or below 730 mg minimum compound mass per capsule, 0 above 730 mg but at or below 1100 mg, and 1 above 1100 mg. Its other 3 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

Which measurements are attached to these salts?

As of the literature review dated 2026-09-11, the supplied study collection associates 0 publications with magnesium orotate and 0 with magnesium l-threonate; the combined list contains 0 unique publications, with shared records printed once.

Study-set membership · reviewed 2026-09-11
SaltPublicationsPublication years
Magnesium orotate0No studies mapped as of 2026-09-11
Magnesium L-threonate0No studies mapped as of 2026-09-11

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.

Magnesium orotate: trace the filed inputs

8 of 8 labels mentioning magnesium orotate are shown in brand order from the supplied NIH DSLD records, calculated 2026-09-13. Salt mentions can overlap; only records assigned this single salt enter its capsule audit above.

Filed labels in brand and product order · 8 labels · calculated 2026-09-13
Brand / labelSalt / physical stateFiled servingObserved item price / EC100
Dr. Sinatra Magnesium Broad-Spectrum ComplexNIH DSLD 286044 · label 2023-05-24Single salt unresolved as of 2026-09-13Capsule2 Capsule(s)200 mg elemental magnesium per servingNo published price matched to barcode 6 78829 20084 2 as of 2026-09-13.
KAL Magnesium Orotate 200NIH DSLD 322919 · label 2024-12-21Magnesium orotateCapsule4 VegCap(s)200 mg elemental magnesium per servingNo published price matched to barcode 0 21245 71060 8 as of 2026-09-13.
LifeLink Magnesium Orotate 775NIH DSLD 11812 · label 2012-10-01Magnesium orotateTablet or Pill1–2 Tablet(s)56 mg elemental magnesium per servingNo published price matched to barcode 6 39793 40104 8 as of 2026-09-13.
Solaray Magnesium Asporotate 400 mgNIH DSLD 338471 · label 2025-09-25Magnesium orotateCapsule2 VegCap(s)400 mg elemental magnesium per servingNo published price matched to barcode 0 76280 04621 2 as of 2026-09-13.
SuperSmart Magnesium Orotate 1500 mgNIH DSLD 332705 · label 2025-05-21Magnesium orotateCapsule3 Capsule(s)105 mg elemental magnesium per serving$25.00 per container; $0.7937 per 100 mgObserved 2026-09-11 · confirmed
Swanson Magnesium Orotate 40 mgNIH DSLD 308659 · label 2024-07-25Magnesium orotateCapsule1 Capsule(s)40 mg elemental magnesium per servingNo published price matched to barcode 0 87614 02665 7 as of 2026-09-13.
VitaMonk Quad-MagnesiumNIH DSLD 242165 · label 2021-03-25Single salt unresolved as of 2026-09-13Capsule2 Capsule(s)225 mg elemental magnesium per servingNo published price matched to barcode X001Y2F31F as of 2026-09-13.
Weyland Brain Nutrition Lithium Orotate 5 +Tri-Magnesium Complex +Vitamin ENIH DSLD 265179 · label 2022-06-16Magnesium orotateCapsule2 Capsule(s)100 mg elemental magnesium per servingNo published price matched to barcode X0029EKMEP as of 2026-09-13.

Open the salt index and linked records to inspect ingredient lists, the source of the assigned salt and dated gaps in price matching.

Magnesium L-threonate: trace the filed inputs

8 of 9 labels mentioning magnesium l-threonate are shown in brand order from the supplied NIH DSLD records, calculated 2026-09-13. Salt mentions can overlap; only records assigned this single salt enter its capsule audit above.

Filed labels in brand and product order · 8 labels · calculated 2026-09-13
Brand / labelSalt / physical stateFiled servingObserved item price / EC100
Dr. Mercola Magnesium AdvancedNIH DSLD 327131 · label 2025-03-25Magnesium L-threonateCapsule3 Capsule(s)145 mg elemental magnesium per serving$34.97 per container; $0.0583 per 100 mgObserved 2026-09-07 · legacy-provisional
Dr. Mercola Magnesium AdvancedNIH DSLD 327132 · label 2025-03-25Magnesium L-threonateCapsule3 Capsule(s)Elemental amount unresolved as of 2026-09-13No published price matched to barcode 8 10487 03069 4 as of 2026-09-13.
Momentous Magnesium ThreonateNIH DSLD 321465 · label 2025-02-23Magnesium L-threonateCapsule3 Capsule(s)144 mg elemental magnesium per servingNo published price matched to barcode 8 50030 79604 2 as of 2026-09-13.
Nootropics Depot Magtein Magnesium L-Threonate PowderNIH DSLD 232390 · label 2020-08-23Magnesium L-threonatePowder1–2 mg144 mg elemental magnesium per servingNo published price matched to NIH DSLD 232390; barcode not filed as of 2026-09-13.
Protocol For Life Balance Magtein Magnesium L-ThreonateNIH DSLD 326454 · label 2025-03-25Magnesium L-threonateCapsule1 Veg Capsule(s)144 mg elemental magnesium per servingNo published price matched to barcode 7 07359 12390 8 as of 2026-09-13.
Signature Supplements Magnesium ComplexNIH DSLD 338836 · label 2025-09-25Single salt unresolved as of 2026-09-13Capsule2 Capsule(s)Elemental amount unresolved as of 2026-09-13No published price matched to NIH DSLD 338836; barcode not filed as of 2026-09-13.
Source Naturals Magtein Magnesium L-Threonate 667 mgNIH DSLD 274903 · label 2022-09-22Magnesium L-threonateCapsule3 Capsule(s)147 mg elemental magnesium per serving$30.79 per container; $0.3491 per 100 mgObserved 2026-08-10 · legacy-provisional
Teraputics Pure Life Magnesium L-ThreonateNIH DSLD 245277 · label 2021-03-25Magnesium L-threonateCapsule4 Vegan Capsule(s)144 mg elemental magnesium per serving$29.95 per container; $0.0599 per 100 mgObserved 2026-08-10 · legacy-provisional

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

Price observations within each salt

As of 2026-09-13, the published price set contains 0 verified magnesium orotate matches and 0 verified magnesium l-threonate 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.

Magnesium orotate: its own retail sample

As of 2026-09-13, magnesium orotate has 0 verified matches and 1 pending matches in the price set. No verified median is available as of 2026-09-13. Observation dates: 2026-09-11 to 2026-09-11.

0 verified retail matches are published for magnesium orotate as of 2026-09-13.

Magnesium orotate · pending observations · reviewed 2026-09-13 · n= 1

These candidate retail-to-label matches remain separate from verified rows and are not included in verified medians.

Magnesium orotate · pending observations · reviewed 2026-09-13 · n=
SuperSmartMagnesium Orotate 1500 mgNIH DSLD · Label 332705105 mg30$25.00Per container · Price observed 2026-09-11, Amazon$0.79373.15 total elemental g/containerPending verification

Open the magnesium orotate label group →

Magnesium L-threonate: its own retail sample

As of 2026-09-13, magnesium l-threonate has 0 verified matches and 3 pending matches in the price set. No verified median is available as of 2026-09-13. Observation dates: 2026-08-10 to 2026-09-07.

0 verified retail matches are published for magnesium l-threonate as of 2026-09-13.

Magnesium L-threonate · pending observations · reviewed 2026-09-13 · n= 3

These candidate retail-to-label matches remain separate from verified rows and are not included in verified medians.

Magnesium L-threonate · pending observations · reviewed 2026-09-13 · n=
Dr. MercolaMagnesium AdvancedNIH DSLD · Label 3271312,000 mg30$34.97Per container · Price observed 2026-09-07, Amazon$0.058360.00 total elemental g/containerPending verification
Source NaturalsMagtein Magnesium L-Threonate 667 mgNIH DSLD · Label 274903147 mg60$30.79Per container · Price observed 2026-08-10, Amazon$0.34918.82 total elemental g/containerPending verification
Teraputics Pure LifeMagnesium L-ThreonateNIH DSLD · Label 2452772,000 mg25$29.95Per container · Price observed 2026-08-10, Amazon$0.059950.00 total elemental g/containerPending verification

Open the magnesium l-threonate label group →

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.