glycerophosphate

SpecialtyPhosphate esterBest with a meal

What is it

Glycerophosphate is the conjugate base of glycerol-3-phosphate. As a supplement ingredient, it usually appears as a counter-ion or carrier for minerals (e.g., calcium glycerophosphate, sodium glycerophosphate, magnesium glycerophosphate), providing both the mineral and a phosphate source in a soluble form.

Evidence for 1 use

AI-assisted evidence assessment — talk to your doctor before relying on any single supplement.

Mineral delivery (e.g., Mg, Ca)

Good Evidence

Glycerophosphate salts deliver minerals with good solubility and tolerability; specific mineral indications apply.

How it works

Glycerophosphate salts dissociate in the gut, releasing the mineral and glycerol-3-phosphate. Glycerol-3-phosphate is rapidly metabolized in cells as an intermediate in glycolysis, gluconeogenesis, and triglyceride synthesis. Magnesium glycerophosphate is marketed as a more soluble and better-tolerated magnesium form. Calcium glycerophosphate is used as a buffer and remineralizing agent in dental products.

Dosage

Doses are expressed in terms of the mineral content (e.g., 100-400 mg elemental magnesium from magnesium glycerophosphate). The glycerophosphate moiety contributes phosphate; phosphate intake from supplements is rarely a concern in healthy adults.

When and how to take it

Take with meals; specific timing depends on the mineral attached.

2 commercial forms

Compare the main delivery options and what they’re best suited for.

Magnesium glycerophosphate

Useful in mag-sensitive guts.

Highly soluble; well-tolerated form of magnesium.

Calcium glycerophosphate

Used in dental remineralization research.

Soluble form used in remineralizing toothpastes and supplements.

Safety

Generally well tolerated. Excess phosphate intake matters mainly in people with chronic kidney disease.

Who should be cautious

People with chronic kidney disease or on phosphate-restricted diets should account for phosphate content.

Interactions

Phosphate from glycerophosphate can interact with calcium-based phosphate binders in dialysis patients.

Frequently asked questions

Is glycerophosphate an active nutrient?⌄

It's primarily a delivery form for minerals like magnesium and calcium.

Is it safe?⌄

Yes for healthy adults. People with kidney disease should consider total phosphate intake.

References

glycerophosphate on Wikidata — Wikidata link

glycerophosphate on NIH DSLD (US supplement label database) — NIH Dietary Supplement Label Database link

Research on glycerophosphate (PubMed search) — PubMed link

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Evidence-based·How we grade evidence

Disclaimer: These statements have not been evaluated by the FDA. This page is educational, not a substitute for personalized medical advice. Evidence grades are AI-assisted assessments — talk to your doctor before starting any new supplement, especially if you’re pregnant, breastfeeding, on medications, or managing a chronic condition.