Oxygen IsotopesWaterDeuterium OxideBody WaterDeuteriumEnergy MetabolismBasal MetabolismCalorimetry, IndirectIsotope LabelingGlycogenolysisEnergy IntakeIndicator Dilution TechniquesWater SupplyNutritional RequirementsBody CompositionFresh WaterBody WeightWater PollutionWater PurificationExerciseReproducibility of ResultsObesityWater Pollutants, ChemicalWater PollutantsWater DeprivationWater MovementsWater SofteningDrinkingAquaporinsSeawaterWater-Electrolyte BalanceRiversWater WellsAquaporin 1Waste WaterDehydrationTemperatureImmersionFiltrationChlorineWater CyclePlant TranspirationEnvironmental MonitoringDisinfectionWater ResourcesSewageWater Pollutants, RadioactiveSolventsSoilExtravascular Lung Water