The effects of betaine supplementation on fluid balance and heat tolerance during passive heat stress in men.

ABSTRACT:

Introduction

Consuming intracellular osmolytes, like betaine (BET), may attenuate symptoms of heat stress. The purpose of this study was to examine the effects of BET supplementation on fluid balance and heat tolerance after a 7-day loading period and during passive heat exposure.

Methods

A double-blind, placebo controlled, crossover study compared BET or placebo consumption (50 mg·kg^-1 , twice daily) for 7 days in young, recreationally active men (N = 11).

Results

During the loading period, no significant interactions were found for any marker of fluid balance between or within conditions. During heat exposure, significant time effects but no condition x time interactions, were found for plasma characteristics (i.e., volume, osmolality, sodium, albumin, an

SUBMITTER: Willingham BD 

PROVIDER: S-EPMC10442523 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature