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Water loss as a function of energy intake, physical activity and season

Published online by Cambridge University Press:  08 March 2007

Klaas R. Westerterp*
Affiliation:
Department of Human Biology, Maastricht University, PO Box 616, 6200 MD, Maastricht, The Netherlands
Guy Plasqui
Affiliation:
Department of Human Biology, Maastricht University, PO Box 616, 6200 MD, Maastricht, The Netherlands
Annelies H. C. Goris
Affiliation:
Department of Human Biology, Maastricht University, PO Box 616, 6200 MD, Maastricht, The Netherlands
*
*Corresponding author: Dr Klaas R. Westerterp, fax +31 43 3670976, email K.Westerterp@HB.Unimaas.NL
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Abstract

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Although water is an important nutrient, there are no recommended intake values. Here, water intake, energy intake, physical activity and water loss was measured over 1 week in summer and in winter. Subjects were healthy volunteers, forty-two women and ten men, mean age of 29 (sd 7) years and mean BMI 21·8 (sd 2·2) kg/m2. Water intake was measured with a 7 d food and water record. Physical activity level (PAL) was observed as the ratio of total energy expenditure, as measured with doubly labelled water, to resting energy expenditure as measured in a respiration chamber. Water loss was measured with the deuterium elimination method. Water loss was highly reproducible and ranged from 0·20 to 0·35 l/MJ, independent of season and activity level, with higher values in women. Water loss was related to water and energy intake in summer (r 0·96, P<0·0001 and r 0·68, P<0·001, respectively) as well as in winter (r 0·98, P<0·0001 and r 0·63, P<0·01, respectively). Water loss was, for men, higher in subjects with a higher physical activity in summer (r 0·94, P<0·0001) and in winter (r 0·70, P<0·05). Normalizing water loss for differences in energy expenditure by expressing water loss in litres per MJ resulted in the same value for men in summer and winter. For women, physical activity-adjusted values of water loss were higher, especially in summer. In men, water turnover was determined by energy intake and physical activity, while seasonal effects appeared through energy expenditure. Women showed a higher water turnover that was unrelated to physical activity.

Type
Research Article
Copyright
Copyright © The Nutrition Society 2005

References

Boschmann, M, Steiniger, J, Hille, U, Tank, J, Adams, F, Sharma, AM, Klaus, S, Luft, FC & Jordan, J (2003) Water induced thermogenesis. J Clin Endocrinol Metab 8, 60156019.CrossRefGoogle Scholar
Goris, AHC & Westerterp, KR (1999) Underreporting of habitual food intake is explained by undereating in highly motivated lean women. J Nutr 129, 878882.CrossRefGoogle ScholarPubMed
Goris, AHC & Westerterp, KR (2000) Improved reporting of habitual food intake after confrontation with earlier results on food reporting. Br J Nutr 83, 363369.CrossRefGoogle ScholarPubMed
Guyton, AC & Hall, JE (2000) Textbook of medical physiology 10th ed.Philadelphia: Saunders.Google Scholar
Lappalainen, R, Mennen, L, Van Weert, L, Mykanen, H ((1993)) Drinking water with a meal: a simple method of coping with feeling of hunger, satiety and desire to eat. Clin Nutr 47, 815819.Google Scholar
McArdle, WD, Katch, FI, Katch, VL ((2001)) Exercise physiology: energy, nutrition, and human performance 5th ed.Philadelphia: Lippincott, Williams & Wilkins.Google Scholar
Manz, F, Wentz, A, Sichert-Hellert, W (2002) The most essential nutrient: defining adequate intake of water. J Pediatr 141, 587592.CrossRefGoogle ScholarPubMed
National Research Council (US) (1989) Recommended dietary allowances 10th ed.247250Washington, DC: National Academy Press.Google Scholar
Plasqui, G, Westerterp, KR (2004) Seasonal variation in total energy expenditure physical activity and physical fitness in Dutch young adults. Obes Res 2, 688694.CrossRefGoogle Scholar
Rolls, BJ, Bell, EA & Thorwart, ML (1999) Water incorporated into a food but not served with a food decreases energy intake in lean women. Am J Clin Nutr 70, 448455.CrossRefGoogle Scholar
Schoeller, DA, Van Santen, E (1982) Measurement of energy expenditure in humans by doubly labeled water method. J Appl Physiol 53, 955959.CrossRefGoogle ScholarPubMed
Schoffelen, PFM, Westerterp, KR, Saris, WHM, Ten Hoor, F (1997) A dual-respiration chamber system with automated calibration. J Appl Physiol 83, 20642072.CrossRefGoogle ScholarPubMed
Weir, JB & de, V (1949) New methods for calculating metabolic rate with special reference to protein metabolism. J Physiol 109, 19.CrossRefGoogle ScholarPubMed
Westerterp, KR (1999) Body composition, water turnover and energy turnover assessment with labelled water. Proc Nutr Soc 58, 945951.CrossRefGoogle ScholarPubMed
Westerterp, KR & Goris, AHC (2002) Validity of the assessment of dietary intake: problems of misreporting. Curr Opin Clin Nutr Metab Care 5, 489493.CrossRefGoogle ScholarPubMed
Westerterp, KR, Wouters, L & Van Marken Lichtenbelt, WD (1995) The Maastricht protocol for the measurement of body composition and energy expenditure with labeled water. Obes Res 3, 4957.CrossRefGoogle ScholarPubMed
World Health OrganizationWorld Health Organization (1985) Energy and Protein Requirements Report of a joint FAO/WHO/UNU expert consultation. Technical Report Seriesno. 724Geneva:WHOGoogle Scholar