Anthropometric, Hemodynamic, Metabolic, and Renal Responses during 5 Days of Food and Water DeprivationPapagiannopoulos I.A.a · Sideris V.I.b · Boschmann M.c · Koutsoni O.S.d · Dotsika E.N.d
a Institute for Social Medicine, Epidemiology, and Health Economics, Charité - Universitätsmedizin Berlin, Germany b Alexandra Hospital of Athens, Greece c Experimental and Clinical Research Center (ECRC), Charité - Universitätsmedizin Berlin, Germany d Laboratory of Cellular Immunology, Department of Microbiology, Hellenic Pasteur Institute, Athens, Greece
Ioannis A. Papagiannopoulos
26A P. Tsaldari Street
15562 Holargos, Athens, Greece
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Background: Although there is considerable research in the field of fasting and fluid restriction, little is known about the impact of food and water deprivation (FWD) on body circumferences and vital parameters. Methods: During 5 days of FWD in 10 healthy adults, hemodynamic, metabolic, and renal parameters, such as weight, 5 circumferences at neck, waist, hip, chest at axilla, chest at nipples, and 1 new oblique hip circumference were measured daily. For each circumference, new quotients of daily circumference-to-weight decrease were calculated. The set of employed parameters quantified and monitored dieting persons' compliance and efficacy of the method. Results: The values of blood pressure, heart rate, hemoglobin oxygen saturation, glucose, K+, Na+, Cl-, urea, creatinine, and serum osmolality proved to be stable. The mean creatinine clearance increased up to 167%. The mean daily weight decrease (1,390 ± 60 g) demonstrated the effectiveness of FWD in weight reduction. The daily decrease of all measured circumferences and the values of the corresponding circumference-to-weight decrease quotients reflected considerable volume decrease in all measured body parts per day and kg of weight loss during FWD. Conclusion: The intervention of 5 FWD days in 10 healthy adults was found to be safe, decreased weight and all measured circumferences, and improved renal function considerably.
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