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Catalyst

sodium chlorideFinding

Sodium chloride has no detected effect on core body temperature

no difference foundVery limited evidenceFinding

01 · The sentence it was drawn from

“There were no significant sodium hyperhydration or MC phase effects on rectal temperature or heart rate (p > .05).”
Quoted verbatim from Sodium Hyperhydration Improves Performance With No Change in Thermal and Cardiovascular Strain in Female Cyclists Exercising in the Heat Across the Menstrual Cycle.
This finding among the 6 findings on its endpoint

sodium chloride

Core body temperature

no difference found

Who
Twelve unacclimatized endurance-trained female cyclists/triathletes, randomized double-blinded crossover, exercising in 34 degrees C heat; both arms drank the same fluid volume, the placebo being sucrose
Dose studied
30 ml/kg fat-free mass fluid containing NaCl 7.5 g/L, 2 hr before 75 min steady-state cycling

Very limited evidencePMID 39591960 · 2025

02 · The study

Study
crossover
Duration
not reported

Evidence, by strength

  • strong
  • moderate
  • limited
  • very limitedthis finding
  • insufficient

03 · The paper

International journal of sport nutrition and exercise metabolism
What else it reported2 findings · 1 compound · 2 endpoints

04 · To cite this finding

This address does not change

https://catalystproject.ai/e/01M7006T6E17WG9JR4SR8HR7E1