Sunardi D., Indonesian Hydration Working Group, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia, Department of Nutrition, Faculty of Medicine, Universitas Indonesia, Dr. Cipto Mangunkusumo Hospital, Jakarta, Indonesia; Chandra D.N., Indonesian Hydration Working Group, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia, Department of Nutrition, Faculty of Medicine, Universitas Indonesia, Dr. Cipto Mangunkusumo Hospital, Jakarta, Indonesia; Medise B.E., Indonesian Hydration Working Group, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia, Child Health Department, Faculty of Medicine Universitas Indonesia, Dr.Cipto Mangunkusumo Hospital, Jakarta, Indonesia; Manikam N.R.M., Indonesian Hydration Working Group, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia, Department of Nutrition, Faculty of Medicine, Universitas Indonesia, Dr. Cipto Mangunkusumo Hospital, Jakarta, Indonesia; Friska D., Indonesian Hydration Working Group, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia, Occupational Medicine, Department of Community Medicine, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia; Lestari W., Indonesian Hydration Working Group, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia, Department of Nutrition, Faculty of Medicine, Universitas Indonesia, Dr. Cipto Mangunkusumo Hospital, Jakarta, Indonesia; Insani P.N.C., Indonesian Hydration Working Group, Faculty of Medicine, Universitas Indonesia, Jakarta, Indonesia