Equal elemental amount · snapshot 2026-08-10
For 200 mg elemental magnesium, magnesium glycerophosphate requires 1,600 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
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 11.83–14.10% for magnesium glycinate; dividing the elemental amount by these fractions gives the compound masses below.
| Property | Magnesium glycerophosphate | Magnesium glycinate |
|---|---|---|
| Elemental Mg by compound mass | 12.50% | 11.83–14.10% |
| Anhydrous reference formula | MgC₃H₇O₆P | Mg(C₂H₄NO₂)₂ |
| Molar mass of that reference formula | 194.36 g/mol | 172.42 g/mol |
| Composition interval | One formula fraction used for MgC₃H₇O₆P in this model. | bisglycinate; chelate hydration varies by supplier |
| Compound for 100 mg elemental Mg | 800 mg | 709–845 mg |
| Compound for 200 mg elemental Mg | 1,600 mg | 1,418–1,691 mg |
| Compound for 400 mg elemental Mg | 3,200 mg | 2,837–3,381 mg |
| Size 00 capsules for 100 mg elemental Mg | 2 capsules at 730 mg compound fill each | 1–2 capsules at 730 mg compound fill each |
| Size 00 capsules for 200 mg elemental Mg | 3 capsules at 730 mg compound fill each | 2–3 capsules at 730 mg compound fill each |
| Size 00 capsules for 400 mg elemental Mg | 5 capsules at 730 mg compound fill each | 4–5 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.
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 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.
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 glycinate: compound mass | Magnesium glycinate: size 0 | Magnesium glycinate: size 00 | Magnesium glycinate: 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 | 177–211 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 | 355–423 mg compound | 1 capsule 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 | 532–634 mg compound | 1–2 capsules at 545 mg fill | 1 capsule 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 | 709–845 mg compound | 2 capsules at 545 mg fill | 1–2 capsules at 730 mg fill | 1 capsule 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 | 887–1,057 mg compound | 2 capsules at 545 mg fill | 2 capsules at 730 mg fill | 1 capsule 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 | 1,064–1,268 mg compound | 2–3 capsules at 545 mg fill | 2 capsules at 730 mg fill | 1–2 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 | 1,241–1,479 mg compound | 3 capsules at 545 mg fill | 2–3 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 | 1,418–1,691 mg compound | 3–4 capsules at 545 mg fill | 2–3 capsules at 730 mg fill | 2 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 | 1,596–1,902 mg compound | 3–4 capsules at 545 mg fill | 3 capsules at 730 mg fill | 2 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 | 1,773–2,113 mg compound | 4 capsules at 545 mg fill | 3 capsules at 730 mg fill | 2 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 | 1,950–2,325 mg compound | 4–5 capsules at 545 mg fill | 3–4 capsules at 730 mg fill | 2–3 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 | 2,128–2,536 mg compound | 4–5 capsules at 545 mg fill | 3–4 capsules at 730 mg fill | 2–3 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 | 2,305–2,747 mg compound | 5–6 capsules at 545 mg fill | 4 capsules at 730 mg fill | 3 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 | 2,482–2,959 mg compound | 5–6 capsules at 545 mg fill | 4–5 capsules at 730 mg fill | 3 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 | 2,660–3,170 mg compound | 5–6 capsules at 545 mg fill | 4–5 capsules at 730 mg fill | 3 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 | 2,837–3,381 mg compound | 6–7 capsules at 545 mg fill | 4–5 capsules at 730 mg fill | 3–4 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 | 3,014–3,593 mg compound | 6–7 capsules at 545 mg fill | 5 capsules at 730 mg fill | 3–4 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 | 3,191–3,804 mg compound | 6–7 capsules at 545 mg fill | 5–6 capsules at 730 mg fill | 3–4 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 | 3,369–4,015 mg compound | 7–8 capsules at 545 mg fill | 5–6 capsules at 730 mg fill | 4 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 | 3,546–4,227 mg compound | 7–8 capsules at 545 mg fill | 5–6 capsules at 730 mg fill | 4 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 | 3,723–4,438 mg compound | 7–9 capsules at 545 mg fill | 6–7 capsules at 730 mg fill | 4–5 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 | 3,901–4,649 mg compound | 8–9 capsules at 545 mg fill | 6–7 capsules at 730 mg fill | 4–5 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 | 4,078–4,861 mg compound | 8–9 capsules at 545 mg fill | 6–7 capsules at 730 mg fill | 4–5 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 | 4,255–5,072 mg compound | 8–10 capsules at 545 mg fill | 6–7 capsules at 730 mg fill | 4–5 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 | 4,433–5,283 mg compound | 9–10 capsules at 545 mg fill | 7–8 capsules at 730 mg fill | 5 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 | 4,610–5,495 mg compound | 9–11 capsules at 545 mg fill | 7–8 capsules at 730 mg fill | 5 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 | 4,787–5,706 mg compound | 9–11 capsules at 545 mg fill | 7–8 capsules at 730 mg fill | 5–6 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 | 4,965–5,917 mg compound | 10–11 capsules at 545 mg fill | 7–9 capsules at 730 mg fill | 5–6 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 | 5,142–6,128 mg compound | 10–12 capsules at 545 mg fill | 8–9 capsules at 730 mg fill | 5–6 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 | 5,319–6,340 mg compound | 10–12 capsules at 545 mg fill | 8–9 capsules at 730 mg fill | 5–6 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 | 5,496–6,551 mg compound | 11–13 capsules at 545 mg fill | 8–9 capsules at 730 mg fill | 5–6 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 | 5,674–6,762 mg compound | 11–13 capsules at 545 mg fill | 8–10 capsules at 730 mg fill | 6–7 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 | 5,851–6,974 mg compound | 11–13 capsules at 545 mg fill | 9–10 capsules at 730 mg fill | 6–7 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 | 6,028–7,185 mg compound | 12–14 capsules at 545 mg fill | 9–10 capsules at 730 mg fill | 6–7 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 | 6,206–7,396 mg compound | 12–14 capsules at 545 mg fill | 9–11 capsules at 730 mg fill | 6–7 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 | 6,383–7,608 mg compound | 12–14 capsules at 545 mg fill | 9–11 capsules at 730 mg fill | 6–7 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 | 6,560–7,819 mg compound | 13–15 capsules at 545 mg fill | 9–11 capsules at 730 mg fill | 6–8 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 | 6,738–8,030 mg compound | 13–15 capsules at 545 mg fill | 10–12 capsules at 730 mg fill | 7–8 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 | 6,915–8,242 mg compound | 13–16 capsules at 545 mg fill | 10–12 capsules at 730 mg fill | 7–8 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 | 7,092–8,453 mg compound | 14–16 capsules at 545 mg fill | 10–12 capsules at 730 mg fill | 7–8 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
In the 2026-08-10 snapshot, the magnesium glycerophosphate form group has 0 audited capsule labels and the magnesium glycinate group has 25; 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 glycinate | 126 | 25 | 14 | 8 | 3 |
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 glycinate has 14 of 25 audited capsule labels at or below 730 mg minimum compound mass per capsule, 8 above 730 mg but at or below 1100 mg, and 3 above 1100 mg. Its other 101 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 6 with magnesium glycinate; the combined list contains 6 unique publications, with shared records printed once.
| Salt | Publications | Publication years |
|---|---|---|
| Magnesium glycerophosphate | 0 | No studies mapped as of 2026-09-11 |
| Magnesium glycinate | 6 | 1995–2024 |
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
The 2026-09-11 literature review links these 6 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 126 labels mentioning magnesium glycinate 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 |
|---|---|---|---|
| Adaptogen Research Magnesium Buffered ChelateNIH DSLD 247097 · label 2021-05-22 | Single salt unresolved as of 2026-10-17Capsule | 2 Capsule(s)300 mg elemental magnesium per serving | No published price matched to barcode 688907 859794 as of 2026-10-17. |
| Adaptogen Research Magnesium Buffered ChelateNIH DSLD 247098 · label 2021-05-22 | Single salt unresolved as of 2026-10-17Capsule | 2 Capsule(s)300 mg elemental magnesium per serving | No published price matched to barcode 688907 859800 as of 2026-10-17. |
| Akasha Naturals Magnesium GlycinateNIH DSLD 313115 · label 2024-10-24 | Magnesium glycinateTablet or Pill | 1 Tablet(s)100 mg elemental magnesium per serving | No published price matched to NIH DSLD 313115; barcode not filed as of 2026-10-17. |
| Amazon Elements Chelated Magnesium 270 mgNIH DSLD 203803 · label 2019-06-24 | Magnesium glycinateTablet or Pill | 2 Tablet(s)270 mg elemental magnesium per serving | $21.59 per container; $0.0666 per 100 mgObserved 2026-11-02 · verified |
| AN Amazing Nutrition Amazing Formulas Magnesium GlycinateNIH DSLD 251824 · label 2021-08-23 | Magnesium glycinatePowder | 1000–2200 mg (1/4 teaspoon-slightly rounded 1/2 teaspoon)401 mg elemental magnesium per serving | No published price matched to barcode 8 10180 02849 3 as of 2026-10-17. |
| AOR Advanced Orthomolecular Research Advanced Advanced Magnesium ComplexNIH DSLD 214423 · label 2020-02-26 | Single salt unresolved as of 2026-10-17Capsule | 1 Capsule(s)Elemental amount unresolved as of 2026-10-17 | No published price matched to barcode 6 24917 08333 0 as of 2026-10-17. |
| Approved Science Magnesium ComplexNIH DSLD 319784 · label 2024-11-22 | Single salt unresolved as of 2026-10-17Capsule | 1 Capsule(s)Elemental amount unresolved as of 2026-10-17 | No published price matched to barcode X0039PGF67 as of 2026-10-17. |
| aSquared Nutrition Magnesium Glycinate 400 mgNIH DSLD 295336 · label 2023-07-18 | Single salt unresolved as of 2026-10-17Tablet or Pill | 2 Tablet(s)Elemental amount unresolved as of 2026-10-17 | $27.95 per container; cost per 100 mg not computedObserved 2026-09-11 · provisional (awaiting a manual match review) |
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 18 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.
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 glycinate has 18 verified matches and 8 pending matches in the price set. Its verified EC100 median is $0.1889 per 100 mg elemental magnesium (n=18); pending matches are excluded from that median. Observation dates: 2026-09-11 to 2026-11-02.
| Pure Encapsulations | Magnesium (Glycinate)NIH DSLD · Label 205309 | 120 mg | 180 | $46.50Per container · Price observed 2026-11-02, Amazon | $0.215321.60 total elemental g/container | Verified |
| Pure Encapsulations | Magnesium (Glycinate)NIH DSLD · Label 219667 | 120 mg | 90 | $27.00Per container · Price observed 2026-11-02, Amazon | $0.250010.80 total elemental g/container | Verified |
| Solgar | Chelated MagnesiumNIH DSLD · Label 217587 | 400 mg | 62 | $23.07Per container · Price observed 2026-11-02, Amazon | $0.093024.80 total elemental g/container | Verified |
| Solgar | Chelated MagnesiumNIH DSLD · Label 239320 | 400 mg | 62 | $23.07Per container · Price observed 2026-11-02, Amazon | $0.093024.80 total elemental g/container | Verified |
| Amazon Elements | Chelated Magnesium 270 mgNIH DSLD · Label 203803 | 270 mg | 120 | $21.59Per container · Price observed 2026-11-02, Amazon | $0.066632.40 total elemental g/container | Verified |
| Codeage | Liposomal Magnesium GlycinateNIH DSLD · Label 335374 | 350 mg | 60 | $39.99Per container · Price observed 2026-11-02, Amazon | $0.190421.00 total elemental g/container | Verified |
| tnvitamins | Magnesium Glycinate 300 mgNIH DSLD · Label 314544 | 300 mg | 45 | $12.99Per container · Price observed 2026-11-02, Amazon | $0.096213.50 total elemental g/container | Verified |
| Dr. Berg | Magnesium GlycinateNIH DSLD · Label 316067 | 400 mg | 30 | $29.99Per container · Price observed 2026-11-02, Amazon | $0.249912.00 total elemental g/container | Verified |
| Integrative Therapeutics | Magnesium Glycinate PlusNIH DSLD · Label 256225 | 220 mg | 60 | $29.25Per container · Price observed 2026-11-02, Amazon | $0.221613.20 total elemental g/container | Verified |
| Source Naturals | Magnesium Bis-GlycinateNIH DSLD · Label 295969 | 200 mg | 60 | $16.74Per container · Price observed 2026-11-02, Amazon | $0.139512.00 total elemental g/container | Verified |
| Nature Made | Magnesium Glycinate 200 mgNIH DSLD · Label 310116 | 200 mg | 30 | $35.10Per container · Price observed 2026-11-02, Amazon | $0.195018.00 total elemental g/container | Verified |
| Natural Factors | Magnesium Bisglycinate 200 mgNIH DSLD · Label 220953 | 200 mg | 50 | $13.97Per container · Price observed 2026-11-02, Amazon | $0.139710.00 total elemental g/container | Verified |
| Windmill | Magnesium Glycinate 200 mgNIH DSLD · Label 333569 | 200 mg | 60 | $16.06Per container · Price observed 2026-11-02, Amazon | $0.133812.00 total elemental g/container | Verified |
| New Chapter | Magnesium + AshwagandhaNIH DSLD · Label 253241 | 325 mg | 30 | $23.97Per container · Price observed 2026-11-02, Amazon | $0.122919.50 total elemental g/container | Verified |
| Doctor's Best | CoQ10 L-Carnitine MagnesiumNIH DSLD · Label 203385 | 200 mg | 30 | $23.99Per container · Price observed 2026-11-02, Amazon | $0.39986.00 total elemental g/container | Verified |
| Healthy Origins | Magnesium Bisglycinate ChelateNIH DSLD · Label 269392 | 200 mg | 60 | $19.99Per container · Price observed 2026-11-02, Amazon | $0.166612.00 total elemental g/container | Verified |
| Kirkman | Magnesium Glycinate Bio-Max SeriesNIH DSLD · Label 24654 | 100 mg | 100 | $47.50Per container · Price observed 2026-11-02, Amazon | $0.475010.00 total elemental g/container | Verified |
| Metabolic Maintenance | Magnesium GlycinateNIH DSLD · Label 274078 | 125 mg | 180 | $42.50Per container · Price observed 2026-11-02, Amazon | $0.188922.50 total elemental g/container | Verified |
These candidate retail-to-label matches remain separate from verified rows and are not included in verified medians.
| Solgar | Chelated MagnesiumNIH DSLD · Label 217578 | 400 mg | 25 | $23.07Per container · Price observed 2026-11-02, Amazon | $0.092325.00 total elemental g/container | Pending · likely |
| Solgar | Chelated MagnesiumNIH DSLD · Label 219379 | 400 mg | 25 | $23.07Per container · Price observed 2026-11-02, Amazon | $0.092325.00 total elemental g/container | Pending · likely |
| aSquared Nutrition | Magnesium Glycinate 400 mgNIH DSLD · Label 295336 | 400 mg | 90 | $27.95Per container · Price observed 2026-09-11, Amazon | Not computedawaiting a manual match review | Pending · provisional |
| The Vitamin Shoppe | Magnesium Glycinate 400 mgNIH DSLD · Label 204459 | 400 mg | 45 | $19.99Per container · Price observed 2026-11-02, Amazon | Not computedpack size differs: the offer lists 135 units, the label 90; label versions on this offer disagree on units per serving | Pending · provisional |
| The Vitamin Shoppe | Magnesium Glycinate 400 mgNIH DSLD · Label 201832 | 400 mg | 30 | $34.99Per container · Price observed 2026-11-02, Amazon | Not computedpack size differs: the offer lists 270 units, the label 90; label versions on this offer disagree on units per serving | Pending · provisional |
| The Vitamin Shoppe | Magnesium Glycinate 400 mgNIH DSLD · Label 208724 | 400 mg | 90 | $34.99Per container · Price observed 2026-11-02, Amazon | Not computedpack size differs: the offer lists 270 units, the label 180; label versions on this offer disagree on units per serving | Pending · provisional |
| The Vitamin Shoppe | Magnesium Glycinate 400 mgNIH DSLD · Label 201834 | 400 mg | 60 | $19.99Per container · Price observed 2026-11-02, Amazon | Not computedpack size differs: the offer lists 135 units, the label 180; label versions on this offer disagree on units per serving | Pending · provisional |
| The Vitamin Shoppe | Magnesium Glycinate 400 mgNIH DSLD · Label 218289 | 400 mg | 30 | $22.99Per container · Price observed 2026-09-21, Amazon | Not computedthe offer is softgel; the label is capsule | 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.