Dosage · Supplement

Glycerol: dosage and how to take it

~1–1.2 g/kg with fluid, hot conditions.

Assembled by the app from other entries in this library. It adds no evidence of its own — follow the links to the entries it draws on.

The evidence in words

~1–1.2 g/kg with substantial fluid before hot endurance events; trial in training.

There are no strict timing conflicts on record for Glycerol; consistency matters more than the exact hour for most goals.

It osmotically holds water, expanding blood and tissue fluid volume to buffer dehydration and thermal strain.

A legitimate hot-weather hyperhydration tool for endurance athletes; pointless in the cold. Practice it first.

As the entry records it, from the studies it summarises. Not a recommendation for you — doses that suit a trial population may not suit you.

Entries that share this one's tags or conditions.

Beetroot / Dietary Nitrate: dosage and how to take it6–13 mmol nitrate, 2–3 h prior.Evidence grade B
Beta-Alanine: dosage and how to take it3.2–6.4 g/day split, 2–4+ weeks.Evidence grade A
Cordyceps: dosage and how to take it1–3 g/day extract.Evidence grade D
Glycerol for Endurance in heatEvidence grade C — Via hyperhydrationEvidence grade C

This entry lists no references of its own — it is assembled from the entries it links to, whose sources are on their pages.

Last revised Jul 10, 2026. A grade is this entry's reading of the evidence, not medical advice.