Evidence brief · Supplement
Glycerol for Fluid retention
Evidence grade B — Reliable osmotic effect
- Overall grade
- Grade B
- Last revised
- 1
- graded outcome
- 0
- references listed
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.
1 at grade B — 1 graded row
What is known
Each outcome with its grade (how strong the evidence is, A to D), the size of the effect where the entry records one, and how often studies agree.
- Fluid retentionEvidence grade B
Reliable osmotic effect
Moderatehigh
The evidence in words
The verdict
For fluid retention, Glycerol earns evidence grade B (moderate effect, high consistency) — there is real evidence here. Reliable osmotic effect
How it might work
It osmotically holds water, expanding blood and tissue fluid volume to buffer dehydration and thermal strain.
How to use it
~1–1.2 g/kg with substantial fluid before hot endurance events; trial in training.
Safety & cautions
GI upset, headache; caution with kidney issues.
Bottom line
A legitimate hot-weather hyperhydration tool for endurance athletes; pointless in the cold. Practice it first.
How it is used
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.
- Pre-event
- ~1–1.2 g/kg with fluid, hot conditions.
Goes with
- GlycerolRead the full Glycerol monographEvidence grade C
Related reading
Entries that share this one's tags or conditions.
- Glycerol for Endurance in heatEvidence grade C — Via hyperhydrationEvidence grade C
- Glycerol: dosage and how to take it~1–1.2 g/kg with fluid, hot conditions.Evidence grade C
- Glycerol: side effects, safety & interactionsGI upset, headache; caution with kidney issues.Evidence grade C
- Beetroot / Dietary NitrateDietary nitrate lowers the oxygen cost of exercise — a legit endurance aid, best in recreational athletes.Evidence grade B
Sources
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 . A grade is this entry's reading of the evidence, not medical advice.