topicGlycerol Exercise Hydration Randomized Trial
claimBackground Endurance athletes experience significant water loss during exercise, which can impair performance and increase the risk of dehydration.
evidence level2
citationHerrera-Amante CA (2025)
sourceEffects of glycerol hyperhidration on the running economy of long-distance runners: a randomized crossover clinical trial.
topicGlycerol Exercise Hydration Randomized Trial
claimResults Glycerol supplementation significantly improved running economy, reducing CCU ( p = 0.025, d = 0.43), OCU ( p = 0.011, r = 0.46), HR ( p = 0.029, d = 0.42), and RPE ( p = 0.003, d = 0.60).
evidence level2
citationHerrera-Amante CA (2025)
sourceEffects of glycerol hyperhidration on the running economy of long-distance runners: a randomized crossover clinical trial.
topicGlycerol Exercise Hydration Randomized Trial
claimAlthough BT showed a slight decrease ( p = 0.053, d = 0.37), it did not reach statistical significance, suggesting a trend toward improved thermoregulation.
evidence level2
citationHerrera-Amante CA (2025)
sourceEffects of glycerol hyperhidration on the running economy of long-distance runners: a randomized crossover clinical trial.
topicGlycerol Exercise Hydration Randomized Trial
claimGlycerol hyperhydration has been explored as a strategy to enhance pre-exercise hydration, particularly when fluid intake opportunities are limited.
evidence level2
citationHerrera-Amante CA (2025)
sourceEffects of glycerol hyperhidration on the running economy of long-distance runners: a randomized crossover clinical trial.
topicGlycerol Exercise Hydration Randomized Trial
claimCompared to G and CON, blood pH and blood bicarbonate concentration was significantly higher with G + SB and SB from 60-180 min (p Conclusions Fluid retention improved in G, SB and G + SB compared to CON, although there were no additive effects with G + SB compared to SB or G.
evidence level4
citationPatrick B (2026)
sourceCombined glycerol and sodium bicarbonate elicits improvements in fluid retention and blood buffering capacity.
topicGlycerol Exercise Hydration Randomized Trial
claimIntroduction Background: It is unclear whether hyperhydration induced via glycerol, sodium bicarbonate or a combination of the two is most effective.
evidence level4
citationPatrick B (2026)
sourceCombined glycerol and sodium bicarbonate elicits improvements in fluid retention and blood buffering capacity.
topicGlycerol Exercise Hydration Randomized Trial
claimAim: This study evaluated the effects of glycerol-, sodium bicarbonate-, and glycerol + sodium bicarbonate-induced hyperhydration on measures of fluid retention, blood buffering capacity, and gastrointestinal symptoms at rest, in comparison to a fluid-only control.
evidence level4
citationPatrick B (2026)
sourceCombined glycerol and sodium bicarbonate elicits improvements in fluid retention and blood buffering capacity.