how much can a human drink water
Large amounts of fluid are used especially when nursing. The Institute of Medicine recommends that pregnant women drink about 10 cups (2.3 liters) of fluids daily and women who breast-feed consume about 13 cups (3.1 liters ) of fluids a day.
Drinking too much water when ill can be harmful, finds study. Doctors warn excessive intake can pose risks for some patients and say medical advice needs to be more specific. Public Health England recommends people should drink six to eight glasses of fluid a day, including water.