Corney et al. Hydration and appetite- Accepted version.pdf (470.43 kB)
Download file

Effect of hydration status and fluid availability on ad-libitum energy intake of a semi-solid breakfast

Download (470.43 kB)
journal contribution
posted on 22.09.2015, 14:00 authored by Robert A. Corney, Anja Horina, Caroline Sunderland, Lewis JamesLewis James
This study investigated the effects of hydration status and fluid availability on appetite and energy intake. Sixteen males completed four 24 h trials, visiting the laboratory overnight fasted on two consecutive days. Standardised foods were provided during the 24 h and on day two an ad-libitum semi-solid porridge breakfast was provided. Water intake during the 24 h (0 or 40 mL·kg-1) and fluid provision during the ad-libitum breakfast were manipulated so subjects were euhydrated with (EU-F) and without fluid (EU-NF) available at breakfast; and hypohydrated with (HYPO-F) and without fluid (HYPO-NF) available at breakfast. Blood samples (0 and 24 h), urine samples (0-24 h) and subjective responses (0, 24 and 24.5 h) were collected. HYPO trials decreased body mass by ~1.8%. Serum and urine osmolality increased and plasma volume decreased during HYPO trials (P < 0.001). Total urine output was greater during EU than HYPO trials (P < 0.001). Ad-libitum energy intake was not different between trials: 2658 (938) kJ (EU-F), 2353 (643) kJ (EU-NF), 2295 (529) kJ (HYPO-F), 2414 (954) kJ (HYPO-NF), (P = 0.131). Fluid intake was ~200 mL greater during HYPO-F than EU-F (P < 0.01). There was an interaction effect for thirst (P < 0.001), but not hunger or fullness. These results demonstrate that mild hypohydration produced by inadequate fluid intake and fluid availability during eating does not influence ad-libitum energy intake of a semi-solid breakfast, at least in healthy young males.

Funding

This study was supported by research funding from the European Hydration Institute.

History

School

  • Sport, Exercise and Health Sciences

Published in

Appetite

Volume

91

Pages

399 - 404

Citation

CORNEY, R. ...et al., 2015. Effect of hydration status and fluid availability on ad-libitum energy intake of a semi-solid breakfast. Appetite, 91, pp.399-404.

Publisher

© Elsevier

Version

AM (Accepted Manuscript)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Publication date

2015

ISSN

0195-6663

eISSN

1095-8304

Language

en