ElementalDose

Equal elemental amount · snapshot 2026-08-10

Magnesium carbonate vs Magnesium glycinate

For 200 mg elemental magnesium, magnesium carbonate requires 694–807 mg of compound and magnesium glycinate requires 1,418–1,691 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 24.78–28.83% magnesium by mass for magnesium carbonate and 11.83–14.10% for magnesium glycinate; dividing the elemental amount by these fractions gives the compound masses below.

Formula, magnesium fraction and compound mass · snapshot context 2026-08-10
PropertyMagnesium carbonateMagnesium glycinate
Elemental Mg by compound mass24.78–28.83%11.83–14.10%
Anhydrous reference formulaMgCO₃Mg(C₂H₄NO₂)₂
Molar mass of that reference formula84.31 g/mol172.42 g/mol
Composition intervalanhydrous or hydrated; labels rarely state whichbisglycinate; chelate hydration varies by supplier
Compound for 100 mg elemental Mg347–404 mg709–845 mg
Compound for 200 mg elemental Mg694–807 mg1,418–1,691 mg
Compound for 400 mg elemental Mg1,387–1,614 mg2,837–3,381 mg
Size 00 capsules for 100 mg elemental Mg1 capsules at 730 mg compound fill each1–2 capsules at 730 mg compound fill each
Size 00 capsules for 200 mg elemental Mg1–2 capsules at 730 mg compound fill each2–3 capsules at 730 mg compound fill each
Size 00 capsules for 400 mg elemental Mg2–3 capsules at 730 mg compound fill each4–5 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 carbonate: 200 mg worked example

For 200 mg elemental magnesium as magnesium carbonate, the chemistry accompanying the 2026-08-10 snapshot requires 694–807 mg of compound: 200 ÷ 0.2883 through 200 ÷ 0.2478, rounded to whole milligrams.

That requires 1–2 size 00 capsules at 730 mg of compound per capsule, before other ingredients. The mass interval reflects anhydrous or hydrated; labels rarely state which.

Magnesium glycinate: 200 mg worked example

For 200 mg elemental magnesium as magnesium glycinate, the chemistry accompanying the 2026-08-10 snapshot requires 1,418–1,691 mg of compound: 200 ÷ 0.1410 through 200 ÷ 0.1183, rounded to whole milligrams.

That requires 2–3 size 00 capsules at 730 mg of compound per capsule, before other ingredients. The mass interval reflects bisglycinate; chelate hydration varies by supplier.

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 carbonate and Magnesium glycinate · 40 elemental inputs · 2026-09-13
Elemental MgMagnesium carbonate: compound massMagnesium carbonate: size 0Magnesium carbonate: size 00Magnesium carbonate: size 000Magnesium glycinate: compound massMagnesium glycinate: size 0Magnesium glycinate: size 00Magnesium glycinate: size 000
25 mg elemental Mg87–101 mg compound1 capsules at 545 mg fill1 capsules at 730 mg fill1 capsules at 1100 mg fill177–211 mg compound1 capsules at 545 mg fill1 capsules at 730 mg fill1 capsules at 1100 mg fill
50 mg elemental Mg173–202 mg compound1 capsules at 545 mg fill1 capsules at 730 mg fill1 capsules at 1100 mg fill355–423 mg compound1 capsules at 545 mg fill1 capsules at 730 mg fill1 capsules at 1100 mg fill
75 mg elemental Mg260–303 mg compound1 capsules at 545 mg fill1 capsules at 730 mg fill1 capsules at 1100 mg fill532–634 mg compound1–2 capsules at 545 mg fill1 capsules at 730 mg fill1 capsules at 1100 mg fill
100 mg elemental Mg347–404 mg compound1 capsules at 545 mg fill1 capsules at 730 mg fill1 capsules at 1100 mg fill709–845 mg compound2 capsules at 545 mg fill1–2 capsules at 730 mg fill1 capsules at 1100 mg fill
125 mg elemental Mg434–504 mg compound1 capsules at 545 mg fill1 capsules at 730 mg fill1 capsules at 1100 mg fill887–1,057 mg compound2 capsules at 545 mg fill2 capsules at 730 mg fill1 capsules at 1100 mg fill
150 mg elemental Mg520–605 mg compound1–2 capsules at 545 mg fill1 capsules at 730 mg fill1 capsules at 1100 mg fill1,064–1,268 mg compound2–3 capsules at 545 mg fill2 capsules at 730 mg fill1–2 capsules at 1100 mg fill
175 mg elemental Mg607–706 mg compound2 capsules at 545 mg fill1 capsules at 730 mg fill1 capsules at 1100 mg fill1,241–1,479 mg compound3 capsules at 545 mg fill2–3 capsules at 730 mg fill2 capsules at 1100 mg fill
200 mg elemental Mg694–807 mg compound2 capsules at 545 mg fill1–2 capsules at 730 mg fill1 capsules at 1100 mg fill1,418–1,691 mg compound3–4 capsules at 545 mg fill2–3 capsules at 730 mg fill2 capsules at 1100 mg fill
225 mg elemental Mg780–908 mg compound2 capsules at 545 mg fill2 capsules at 730 mg fill1 capsules at 1100 mg fill1,596–1,902 mg compound3–4 capsules at 545 mg fill3 capsules at 730 mg fill2 capsules at 1100 mg fill
250 mg elemental Mg867–1,009 mg compound2 capsules at 545 mg fill2 capsules at 730 mg fill1 capsules at 1100 mg fill1,773–2,113 mg compound4 capsules at 545 mg fill3 capsules at 730 mg fill2 capsules at 1100 mg fill
275 mg elemental Mg954–1,110 mg compound2–3 capsules at 545 mg fill2 capsules at 730 mg fill1–2 capsules at 1100 mg fill1,950–2,325 mg compound4–5 capsules at 545 mg fill3–4 capsules at 730 mg fill2–3 capsules at 1100 mg fill
300 mg elemental Mg1,041–1,211 mg compound2–3 capsules at 545 mg fill2 capsules at 730 mg fill1–2 capsules at 1100 mg fill2,128–2,536 mg compound4–5 capsules at 545 mg fill3–4 capsules at 730 mg fill2–3 capsules at 1100 mg fill
325 mg elemental Mg1,127–1,312 mg compound3 capsules at 545 mg fill2 capsules at 730 mg fill2 capsules at 1100 mg fill2,305–2,747 mg compound5–6 capsules at 545 mg fill4 capsules at 730 mg fill3 capsules at 1100 mg fill
350 mg elemental Mg1,214–1,412 mg compound3 capsules at 545 mg fill2 capsules at 730 mg fill2 capsules at 1100 mg fill2,482–2,959 mg compound5–6 capsules at 545 mg fill4–5 capsules at 730 mg fill3 capsules at 1100 mg fill
375 mg elemental Mg1,301–1,513 mg compound3 capsules at 545 mg fill2–3 capsules at 730 mg fill2 capsules at 1100 mg fill2,660–3,170 mg compound5–6 capsules at 545 mg fill4–5 capsules at 730 mg fill3 capsules at 1100 mg fill
400 mg elemental Mg1,387–1,614 mg compound3 capsules at 545 mg fill2–3 capsules at 730 mg fill2 capsules at 1100 mg fill2,837–3,381 mg compound6–7 capsules at 545 mg fill4–5 capsules at 730 mg fill3–4 capsules at 1100 mg fill
425 mg elemental Mg1,474–1,715 mg compound3–4 capsules at 545 mg fill3 capsules at 730 mg fill2 capsules at 1100 mg fill3,014–3,593 mg compound6–7 capsules at 545 mg fill5 capsules at 730 mg fill3–4 capsules at 1100 mg fill
450 mg elemental Mg1,561–1,816 mg compound3–4 capsules at 545 mg fill3 capsules at 730 mg fill2 capsules at 1100 mg fill3,191–3,804 mg compound6–7 capsules at 545 mg fill5–6 capsules at 730 mg fill3–4 capsules at 1100 mg fill
475 mg elemental Mg1,648–1,917 mg compound4 capsules at 545 mg fill3 capsules at 730 mg fill2 capsules at 1100 mg fill3,369–4,015 mg compound7–8 capsules at 545 mg fill5–6 capsules at 730 mg fill4 capsules at 1100 mg fill
500 mg elemental Mg1,734–2,018 mg compound4 capsules at 545 mg fill3 capsules at 730 mg fill2 capsules at 1100 mg fill3,546–4,227 mg compound7–8 capsules at 545 mg fill5–6 capsules at 730 mg fill4 capsules at 1100 mg fill
525 mg elemental Mg1,821–2,119 mg compound4 capsules at 545 mg fill3 capsules at 730 mg fill2 capsules at 1100 mg fill3,723–4,438 mg compound7–9 capsules at 545 mg fill6–7 capsules at 730 mg fill4–5 capsules at 1100 mg fill
550 mg elemental Mg1,908–2,220 mg compound4–5 capsules at 545 mg fill3–4 capsules at 730 mg fill2–3 capsules at 1100 mg fill3,901–4,649 mg compound8–9 capsules at 545 mg fill6–7 capsules at 730 mg fill4–5 capsules at 1100 mg fill
575 mg elemental Mg1,994–2,320 mg compound4–5 capsules at 545 mg fill3–4 capsules at 730 mg fill2–3 capsules at 1100 mg fill4,078–4,861 mg compound8–9 capsules at 545 mg fill6–7 capsules at 730 mg fill4–5 capsules at 1100 mg fill
600 mg elemental Mg2,081–2,421 mg compound4–5 capsules at 545 mg fill3–4 capsules at 730 mg fill2–3 capsules at 1100 mg fill4,255–5,072 mg compound8–10 capsules at 545 mg fill6–7 capsules at 730 mg fill4–5 capsules at 1100 mg fill
625 mg elemental Mg2,168–2,522 mg compound4–5 capsules at 545 mg fill3–4 capsules at 730 mg fill2–3 capsules at 1100 mg fill4,433–5,283 mg compound9–10 capsules at 545 mg fill7–8 capsules at 730 mg fill5 capsules at 1100 mg fill
650 mg elemental Mg2,255–2,623 mg compound5 capsules at 545 mg fill4 capsules at 730 mg fill3 capsules at 1100 mg fill4,610–5,495 mg compound9–11 capsules at 545 mg fill7–8 capsules at 730 mg fill5 capsules at 1100 mg fill
675 mg elemental Mg2,341–2,724 mg compound5 capsules at 545 mg fill4 capsules at 730 mg fill3 capsules at 1100 mg fill4,787–5,706 mg compound9–11 capsules at 545 mg fill7–8 capsules at 730 mg fill5–6 capsules at 1100 mg fill
700 mg elemental Mg2,428–2,825 mg compound5–6 capsules at 545 mg fill4 capsules at 730 mg fill3 capsules at 1100 mg fill4,965–5,917 mg compound10–11 capsules at 545 mg fill7–9 capsules at 730 mg fill5–6 capsules at 1100 mg fill
725 mg elemental Mg2,515–2,926 mg compound5–6 capsules at 545 mg fill4–5 capsules at 730 mg fill3 capsules at 1100 mg fill5,142–6,128 mg compound10–12 capsules at 545 mg fill8–9 capsules at 730 mg fill5–6 capsules at 1100 mg fill
750 mg elemental Mg2,601–3,027 mg compound5–6 capsules at 545 mg fill4–5 capsules at 730 mg fill3 capsules at 1100 mg fill5,319–6,340 mg compound10–12 capsules at 545 mg fill8–9 capsules at 730 mg fill5–6 capsules at 1100 mg fill
775 mg elemental Mg2,688–3,128 mg compound5–6 capsules at 545 mg fill4–5 capsules at 730 mg fill3 capsules at 1100 mg fill5,496–6,551 mg compound11–13 capsules at 545 mg fill8–9 capsules at 730 mg fill5–6 capsules at 1100 mg fill
800 mg elemental Mg2,775–3,228 mg compound6 capsules at 545 mg fill4–5 capsules at 730 mg fill3 capsules at 1100 mg fill5,674–6,762 mg compound11–13 capsules at 545 mg fill8–10 capsules at 730 mg fill6–7 capsules at 1100 mg fill
825 mg elemental Mg2,862–3,329 mg compound6–7 capsules at 545 mg fill4–5 capsules at 730 mg fill3–4 capsules at 1100 mg fill5,851–6,974 mg compound11–13 capsules at 545 mg fill9–10 capsules at 730 mg fill6–7 capsules at 1100 mg fill
850 mg elemental Mg2,948–3,430 mg compound6–7 capsules at 545 mg fill5 capsules at 730 mg fill3–4 capsules at 1100 mg fill6,028–7,185 mg compound12–14 capsules at 545 mg fill9–10 capsules at 730 mg fill6–7 capsules at 1100 mg fill
875 mg elemental Mg3,035–3,531 mg compound6–7 capsules at 545 mg fill5 capsules at 730 mg fill3–4 capsules at 1100 mg fill6,206–7,396 mg compound12–14 capsules at 545 mg fill9–11 capsules at 730 mg fill6–7 capsules at 1100 mg fill
900 mg elemental Mg3,122–3,632 mg compound6–7 capsules at 545 mg fill5 capsules at 730 mg fill3–4 capsules at 1100 mg fill6,383–7,608 mg compound12–14 capsules at 545 mg fill9–11 capsules at 730 mg fill6–7 capsules at 1100 mg fill
925 mg elemental Mg3,208–3,733 mg compound6–7 capsules at 545 mg fill5–6 capsules at 730 mg fill3–4 capsules at 1100 mg fill6,560–7,819 mg compound13–15 capsules at 545 mg fill9–11 capsules at 730 mg fill6–8 capsules at 1100 mg fill
950 mg elemental Mg3,295–3,834 mg compound7–8 capsules at 545 mg fill5–6 capsules at 730 mg fill3–4 capsules at 1100 mg fill6,738–8,030 mg compound13–15 capsules at 545 mg fill10–12 capsules at 730 mg fill7–8 capsules at 1100 mg fill
975 mg elemental Mg3,382–3,935 mg compound7–8 capsules at 545 mg fill5–6 capsules at 730 mg fill4 capsules at 1100 mg fill6,915–8,242 mg compound13–16 capsules at 545 mg fill10–12 capsules at 730 mg fill7–8 capsules at 1100 mg fill
1000 mg elemental Mg3,469–4,036 mg compound7–8 capsules at 545 mg fill5–6 capsules at 730 mg fill4 capsules at 1100 mg fill7,092–8,453 mg compound14–16 capsules at 545 mg fill10–12 capsules at 730 mg fill7–8 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 carbonate form group has 0 audited capsule labels and the magnesium glycinate group has 42; 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 carbonate230000
Magnesium glycinate12642161313

At 2026-08-10, magnesium carbonate has 0 of 0 audited capsule labels at or below 730 mg minimum compound mass per capsule, 0 above 730 mg but at or below 1100 mg, and 0 above 1100 mg. Its other 23 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 glycinate has 16 of 42 audited capsule labels at or below 730 mg minimum compound mass per capsule, 13 above 730 mg but at or below 1100 mg, and 13 above 1100 mg. Its other 84 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 2 publications with magnesium carbonate and 6 with magnesium glycinate; the combined list contains 7 unique publications, with shared records printed once.

Study-set membership · reviewed 2026-09-11
SaltPublicationsPublication years
Magnesium carbonate22005–2022
Magnesium glycinate61995–2024

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

7 published measurements relevant to this pair

The 2026-09-11 literature review links these 7 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.

  1. Comparative Clinical Study on Magnesium Absorption and Side Effects After Oral Intake of Microencapsulated Magnesium (MAGSHAPE™ Microcapsules) Versus Other Magnesium Sources.

    Nutrients · 2024 · PMID 39770988

    Design
    Double-blind, randomized, cross-over clinical study in 40 healthy women and men. Participants followed a low-magnesium diet for 7 days and fasted 8 hours, then received a single oral dose of each of four products in cross-over fashion: microencapsulated magnesium (Mg-MS / MAGSHAPE), magnesium oxide (MgO), magnesium citrate (Mg-C), and magnesium bisglycinate (Mg-BG). Blood was drawn by digital puncture before dosing (0 h) and at 1, 4, and 6 hours after each product.
    What it measured
    Plasma magnesium concentration at 0, 1, 4, and 6 hours after oral intake of each of the four products; gastrointestinal side effects (intestinal motility, sensations of gastric heaviness) associated with each product.
    Limits
    Single-dose exposure per product, not chronic supplementation; sample size n=40; a specific proprietary microencapsulation technology was tested, which may not generalize to other encapsulation methods; plasma magnesium was the only absorption marker used (no urinary or tissue measurement).

  2. The bioaccessibility and tolerability of marine-derived sources of magnesium and calcium.

    Methods (San Diego, Calif.) · 2024 · PMID 38608850

    Design
    Two-part study. (1) In vitro digestion (INFOGEST method) comparing solubility of Aquamin-Mg (seawater-derived, 12% magnesium), a commercially available magnesium bisglycinate, and a specific branded magnesium bisglycinate (PrizMAG) during simulated gastric and intestinal digestion phases, with and without co-administered food. (2) A randomized, double-blind, placebo-controlled 12-week study in a small cohort of healthy older adults given a combined Aquamin-Mg/Aquamin-F supplement.
    What it measured
    In vitro mineral solubility during simulated gastric and intestinal digestion phases; adverse-event reporting and tolerability over the 12-week human study arm.
    Limits
    The solubility comparison was performed in vitro (simulated digestion model), not as in vivo human absorption; the human arm assessed tolerability/safety only, not comparative bioavailability; the human cohort was described only as small and limited to older adults, with no numeric sample size given in the abstract.

  3. Effects of short-term magnesium supplementation on ionized, total magnesium and other relevant electrolytes levels.

    Biometals : an international journal on the role of metal ions in biology, biochemistry, and medicine · 2022 · PMID 35041150

    Design
    Short-term, 10-day supplementation study in 61 healthy young female adults, comparing three magnesium supplement forms: magnesium oxide (powder/granulate), magnesium citrate, and magnesium carbonate (effervescent tablets).
    What it measured
    Ionized magnesium concentration and its percentage of total magnesium; serum total magnesium concentration; other serum electrolyte levels — each assessed at baseline and after the 10-day intervention.
    Limits
    Healthy young female adults only, no male or older/deficient populations studied; short 10-day intervention with no longer-term follow-up; three specific product formulations were tested, so results may not generalize to other products of the same salts; the abstract does not report the per-arm breakdown of the 61 participants.

  4. Dose-Dependent Absorption Profile of Different Magnesium Compounds

    Biological Trace Element Research · 2020 · PMID 30761462

    Design
    Absorption of several magnesium compounds profiled across doses rather than at a single dose.
    What it measured
    Absorption is treated as dose-dependent, so a comparison made at one dose need not hold at another — which is why single-dose head-to-head results disagree.
    Limits
    Compound coverage and sample size vary by arm; read the paper before carrying any single figure across.

  5. Study of magnesium bioavailability from ten organic and inorganic Mg salts in Mg-depleted rats using a stable isotope approach

    Magnesium Research · 2005 · PMID 16548135

    Design
    Eighty male Wistar rats fed a magnesium-depleted diet for three weeks, then randomised into ten groups, each receiving a different magnesium salt labelled with a stable isotope.
    What it measured
    Stable isotopes allow absorption and retention to be traced directly rather than inferred from urine, across ten salts at once — the widest head-to-head comparison in the literature.
    Limits
    Rats, not people, and magnesium-depleted rats at that: depletion itself raises absorption. The breadth of the comparison is its value; the species is its limit.

  6. Mg citrate found more bioavailable than other Mg preparations in a randomised, double-blind study

    Magnesium Research · 2003 · PMID 14596323

    Design
    Randomised, double-blind, placebo-controlled parallel study in 46 healthy individuals, 300 mg of elemental magnesium per day, comparing an amino-acid chelate, citrate and oxide.
    What it measured
    Relative bioavailability of the three preparations was compared at an equal elemental dose.
    Limits
    46 participants, healthy, 300 mg per day; “amino-acid chelate” is a class rather than one defined compound, so the chelate arm is not a single substance.

  7. Bioavailability of magnesium diglycinate vs magnesium oxide in patients with ileal resection

    JPEN: Journal of Parenteral and Enteral Nutrition · 1995 · PMID 7815675

    Design
    Comparison of magnesium diglycinate (a chelate) with magnesium oxide in patients who had undergone ileal resection.
    What it measured
    The work followed in vitro and in situ findings suggesting diglycinate is absorbed by a different route than inorganic salts, and tested that in patients with impaired absorption.
    Limits
    Patients after ileal resection are a specific clinical population with poor absorption to begin with; results do not transfer to people with an intact gut.

Magnesium carbonate: trace the filed inputs

8 of 23 labels mentioning magnesium carbonate 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
Bairn Biologics Magnesium Plus Raspberry Lemonade FlavorNIH DSLD 230669 · label 2020-07-23Magnesium carbonatePowder5.7 Gram(s) (1 level scoop)300 mg elemental magnesium per servingNo published price matched to NIH DSLD 230669; barcode not filed as of 2026-09-13.
BIOVEA Calcium-MagnesiumNIH DSLD 248974 · label 2021-05-22Magnesium oxideCapsule3 Vegetarian Capsule(s)500 mg elemental magnesium per serving$14.99 per container; $0.0361 per 100 mgObserved 2026-09-07 · legacy-verified
CVS Pharmacy Natural Calcium, Magnesium & Zinc USPNIH DSLD 12010 · label 2012-08-24Magnesium oxideUnknown1 Caplet(s)133 mg elemental magnesium per servingNo published price matched to barcode 0 50428 06542 6 as of 2026-09-13.
Douglas Laboratories Dyna-Cal Extra-Strength Natural Calcium/Magnesium ComplexNIH DSLD 9831 · label 2012-06-01Single salt unresolved as of 2026-09-13Tablet or Pill4 Tablet(s)420 mg elemental magnesium per servingNo published price matched to barcode 3 10539 01579 7 as of 2026-09-13.
Douglas Laboratories Dyna-Cal Extra-Strength Natural Calcium/Magnesium ComplexNIH DSLD 9832 · label 2012-06-01Single salt unresolved as of 2026-09-13Tablet or Pill4 Tablet(s)420 mg elemental magnesium per servingNo published price matched to barcode 3 10539 01239 0 as of 2026-09-13.
Family Wellness Calcium, Magnesium & ZincNIH DSLD 76776 · label 2017-07-25Single salt unresolved as of 2026-09-13Tablet or Pill1 Tablet(s)133 mg elemental magnesium per servingNo published price matched to barcode 0 32251 02718 5 as of 2026-09-13.
Finest Nutrition Calcium, Magnesium & ZincNIH DSLD 64451 · label 2016-09-22Single salt unresolved as of 2026-09-13Tablet or Pill1 Tablet(s)133 mg elemental magnesium per servingNo published price matched to barcode 3 11917 13950 0 as of 2026-09-13.
GNC Magnesium Powder LemonNIH DSLD 243047 · label 2021-01-22Single salt unresolved as of 2026-09-13Powder4 Gram(s) (1 Scoop)325 mg elemental magnesium per serving$22.99 per container; $0.0842 per 100 mgObserved 2026-09-07 · legacy-verified

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

Magnesium glycinate: trace the filed inputs

8 of 126 labels mentioning magnesium glycinate 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
Adaptogen Research Magnesium Buffered ChelateNIH DSLD 247097 · label 2021-05-22Single salt unresolved as of 2026-09-13Capsule2 Capsule(s)300 mg elemental magnesium per servingNo published price matched to barcode 688907 859794 as of 2026-09-13.
Adaptogen Research Magnesium Buffered ChelateNIH DSLD 247098 · label 2021-05-22Single salt unresolved as of 2026-09-13Capsule2 Capsule(s)300 mg elemental magnesium per servingNo published price matched to barcode 688907 859800 as of 2026-09-13.
Akasha Naturals Magnesium GlycinateNIH DSLD 313115 · label 2024-10-24Magnesium glycinateTablet or Pill1 Tablet(s)100 mg elemental magnesium per servingNo published price matched to NIH DSLD 313115; barcode not filed as of 2026-09-13.
Amazon Elements Chelated Magnesium 270 mgNIH DSLD 203803 · label 2019-06-24Magnesium glycinateTablet or Pill2 Tablet(s)270 mg elemental magnesium per serving$21.59 per container; $0.0666 per 100 mgObserved 2026-08-31 · legacy-verified
AN Amazing Nutrition Amazing Formulas Magnesium GlycinateNIH DSLD 251824 · label 2021-08-23Magnesium glycinatePowder1000–2200 mg (1/4 teaspoon-slightly rounded 1/2 teaspoon)401 mg elemental magnesium per servingNo published price matched to barcode 8 10180 02849 3 as of 2026-09-13.
AOR Advanced Orthomolecular Research Advanced Advanced Magnesium ComplexNIH DSLD 214423 · label 2020-02-26Single salt unresolved as of 2026-09-13Capsule1 Capsule(s)Elemental amount unresolved as of 2026-09-13No published price matched to barcode 6 24917 08333 0 as of 2026-09-13.
Approved Science Magnesium ComplexNIH DSLD 319784 · label 2024-11-22Single salt unresolved as of 2026-09-13Capsule1 Capsule(s)200 mg elemental magnesium per servingNo published price matched to barcode X0039PGF67 as of 2026-09-13.
aSquared Nutrition Magnesium Glycinate 400 mgNIH DSLD 295336 · label 2023-07-18Magnesium glycinateTablet or Pill2 Tablet(s)400 mg elemental magnesium per serving$27.95 per container; $0.0776 per 100 mgObserved 2026-09-11 · 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 carbonate matches and 11 verified magnesium glycinate 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 carbonate: its own retail sample

As of 2026-09-13, magnesium carbonate has 0 verified matches and 0 pending matches in the price set. No verified median is available as of 2026-09-13. Observation dates: No published observations as of 2026-09-13.

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

There are 0 pending price matches for magnesium carbonate as of 2026-09-13.

Open the magnesium carbonate label group →

Magnesium glycinate: its own retail sample

As of 2026-09-13, magnesium glycinate has 11 verified matches and 9 pending matches in the price set. Its verified EC100 median is $0.1088 per 100 mg elemental magnesium (n=11); pending matches are excluded from that median. Observation dates: 2026-08-10 to 2026-09-11.

Magnesium glycinate · verified observations · reviewed 2026-09-13 · n= 11

Magnesium glycinate · verified observations · reviewed 2026-09-13 · n=
KALMagnesium Glycinate 400NIH DSLD · Label 253226400 mg45$17.39Per container · Price observed 2026-09-07, Amazon$0.096618.00 total elemental g/containerVerified
KALMagnesium Glycinate 400NIH DSLD · Label 255079400 mg60$16.99Per container · Price observed 2026-09-07, Amazon$0.070824.00 total elemental g/containerVerified
KALMagnesium Glycinate 400NIH DSLD · Label 255081400 mg90$17.39Per container · Price observed 2026-09-07, Amazon$0.048336.00 total elemental g/containerVerified
KALMagnesium Glycinate 400 Natural Orange FlavorNIH DSLD · Label 255083400 mg30$22.10Per container · Price observed 2026-09-07, Amazon$0.184212.00 total elemental g/containerVerified
Pure EncapsulationsMagnesium (Glycinate)NIH DSLD · Label 205309120 mg180$46.50Per container · Price observed 2026-09-07, Amazon$0.215321.60 total elemental g/containerVerified
Pure EncapsulationsMagnesium (Glycinate)NIH DSLD · Label 219667120 mg90$27.00Per container · Price observed 2026-09-07, Amazon$0.250010.80 total elemental g/containerVerified
SolgarChelated MagnesiumNIH DSLD · Label 217578400 mg25$26.99Per container · Price observed 2026-09-07, Amazon$0.269910.00 total elemental g/containerVerified
SolgarChelated MagnesiumNIH DSLD · Label 219379400 mg25$26.99Per container · Price observed 2026-09-07, Amazon$0.269910.00 total elemental g/containerVerified
SolgarChelated MagnesiumNIH DSLD · Label 217587400 mg62$26.99Per container · Price observed 2026-09-07, Amazon$0.108824.80 total elemental g/containerVerified
SolgarChelated MagnesiumNIH DSLD · Label 239320400 mg62$26.99Per container · Price observed 2026-09-07, Amazon$0.108824.80 total elemental g/containerVerified
Amazon ElementsChelated Magnesium 270 mgNIH DSLD · Label 203803270 mg120$21.59Per container · Price observed 2026-08-31, Amazon$0.066632.40 total elemental g/containerVerified
Magnesium glycinate · pending observations · reviewed 2026-09-13 · n= 9

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

Magnesium glycinate · pending observations · reviewed 2026-09-13 · n=
KALMagnesium Glycinate 400NIH DSLD · Label 255082400 mg30$16.99Per container · Price observed 2026-08-10, Amazon$0.141612.00 total elemental g/containerPending verification
aSquared NutritionMagnesium Glycinate 400 mgNIH DSLD · Label 295336400 mg90$27.95Per container · Price observed 2026-09-11, Amazon$0.077636.00 total elemental g/containerPending verification
BulkSupplements.comMagnesium Glycinate PowderNIH DSLD · Label 329643400 mg454$19.96Per container · Price observed 2026-09-11, Amazon$0.0110181.60 total elemental g/containerPending verification
CodeageLiposomal Magnesium GlycinateNIH DSLD · Label 335374350 mg60$39.99Per container · Price observed 2026-09-11, Amazon$0.190421.00 total elemental g/containerPending verification
Country LifeMagnesium Glycinate 400 mg Tangy Berry FlavorNIH DSLD · Label 183706400 mg32$29.99Per container · Price observed 2026-09-11, Amazon$0.234312.80 total elemental g/containerPending verification
The Vitamin ShoppeMagnesium Glycinate 400 mgNIH DSLD · Label 204459400 mg45$19.99Per container · Price observed 2026-09-11, Amazon$0.111118.00 total elemental g/containerPending verification
tnvitaminsMagnesium Glycinate 300 mgNIH DSLD · Label 314544300 mg45$12.99Per container · Price observed 2026-09-11, Amazon$0.096213.50 total elemental g/containerPending verification
Douglas LaboratoriesMagnesium GlycinateNIH DSLD · Label 230442100 mg240$51.00Per container · Price observed 2026-09-11, Amazon$0.212524.00 total elemental g/containerPending verification
Dr. BergMagnesium GlycinateNIH DSLD · Label 316067400 mg30$29.99Per container · Price observed 2026-09-11, Amazon$0.249912.00 total elemental g/containerPending verification

Open the magnesium glycinate 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.