Form · as filed on labels
Magnesium glycerophosphate
Magnesium glycerophosphate is 12.5% elemental magnesium by mass (MgC₃H₇O₆P, molar mass 194.36). Every 100 mg of elemental magnesium from it needs 800 mg of the compound, calculated 2026-09-13. 0 on-market labels name this form. No per-serving figure is determinable for this group. Small group: fewer than three computed labels, so the median is a single reading, not a distribution.
Chemistry · fixed
How much glycerophosphate carries how much magnesium
A US Supplement Facts panel declares the element, not the salt. Magnesium glycerophosphate has a molar mass of 194.36 against magnesium's 24.305, so 12.5% of its mass is magnesium.
| Elemental magnesium | glycerophosphate required | Size 00 capsules that much powder fills |
|---|---|---|
| 100 mg | 800 mg | 2 |
| 200 mg | 1,600 mg | 3 |
| 400 mg | 3,200 mg | 5 |
A size 00 capsule holds about 730 mg of powder at powder density 0.6–0.8 g/mL; a size 000 about 1,100 mg.
Median and range use the 0 labels with one determinable amount per serving, excluding any above 1,000 mg as filed. 0 of these labels carry an observed price in the gold set. This form has no priced EC100 table yet.
Labels filing this form 0
No labels in this group.
See all forms, brands, or the priced form matrix.
Compare glycerophosphate with other salts
0 published comparisons include magnesium glycerophosphate as of 2026-09-13; each row gives the other salt's magnesium fraction and compound mass for 100 mg elemental magnesium from the chemistry model.
Excipients most common in glycerophosphate labels
0 published excipient facets below have the highest frequencies among 0 labels mentioning magnesium glycerophosphate in the NIH DSLD records, counted 2026-09-13; each label enters an ingredient count once.
The metric
What EC100 measures
EC100 = container price ÷ (elemental mg per serving × servings per container ÷ 100)
It normalizes the declared elemental amount to a 100 mg unit. It does not score ingredients, quality, or outcomes.