A good rule of thumb for athletes is to divide their body weight in half and drink at least an ounce per pound of body weight throughout a typical day.
Aim to drink at least 1.5-2 litres of water each day. Some mothers may need to drink more water each day when breastfeeding is well established. Thirst is a.
You need to drink 6 to 8 medium (200ml) glasses of fluid a day, or 1.6 litres. All drinks count, including hot drinks such as tea and coffee. But you should.