Form index

Types of magnesium: how much magnesium each of 15 forms holds

Oxide is 60.3% magnesium, gluconate 5.9%: the 15 forms differ tenfold in how much salt 100 mg of magnesium takes. Labels and prices per form.

17 salt or chelate forms are named on 305 of 716 on-market labels in NIH DSLD snapshot 2026-08-10, grouped 2026-10-17. Medians describe the filed amount per serving inside a form. Groups with fewer than three computed labels are marked small.

sorted bar · elemental magnesium fraction of 15 salts · oxide 60.3% highest, gluconate 5.9% lowest · chemistry 2026-08-10 — Elemental magnesium fraction of 15 defined salts; hydrate ranges are gray.

Chart data

Chart labels and values
Displayed chart text
oxide
60.3%
hydroxide
41.7%
carbonate
24.8–28.8%
chloride
12.0–25.5%
sulfate
9.9–20.2%
citrate
11.3–16.2%
aspartate
7.5–15.6%
malate
12.6–15.5%
glycinate
11.8–14.1%
glycerophosphate
12.5%
lactate
10.2–12.0%
taurate
8.9%
L-threonate
8.3%
orotate
7.3%
gluconate
5.9%

Magnesium forms with label counts and medians

Magnesium amino acid chelate	19	17	300 mg	Not priced yet
Magnesium ascorbate	7	6	321 mg	Not priced yet
Magnesium aspartate	33	31	200 mg	Not priced yet
Magnesium carbonate	9	9	350 mg	Not priced yet
Magnesium chloride	4	4	100 mg	Not priced yet
Magnesium citrate	118	116	217.5 mg	EC100 table →
Magnesium dimagnesium malate	6	6	175 mg	Not priced yet
Magnesium gluconate	14	14	133 mg	Not priced yet
Magnesium glycinatefiled as bis-glycinate, bisglycinate, glycinate	65	64	300 mg	EC100 table →
Magnesium hydroxide	6	6	124 mg	Not priced yet
Magnesium lactate	2	2small group	400 mg	Not priced yet
Magnesium lysinate	9	9	235 mg	Not priced yet
Magnesium malate	33	29	350 mg	Not priced yet
Magnesium orotate	4	4	212.5 mg	Not priced yet
Magnesium oxide	108	107	320 mg	EC100 table →
Magnesium taurate	2	2small group	262.5 mg	Not priced yet
Magnesium L-threonate	4	4	144 mg	Not priced yet

411 labels file no form text and appear only under all products and their brand pages. A label naming several forms is counted in each.

Every pair of salts in the chemistry model

105 pairs compare every two of the 15 salts in the chemistry model, calculated 2026-10-17; 91 of them connect salts that both have filed products in the supplied NIH DSLD records; each comparison shows compound mass, capsule arithmetic, attached studies and prices within each salt.

Pairs use alphabetic URL order except the two established addresses for glycinate vs citrate and oxide vs glycinate. Hydration-ambiguous salts retain their full mass intervals.

Additional chemistry references

2 salts in the chemistry model have no separate name group in the extracted primary rows as of 2026-10-17; the linked pages include any salt mentions resolved from full NIH DSLD records.

Magnesium glycerophosphate: 0 matching labels in the retained records.
Magnesium sulfate: 4 matching labels in the retained records.