how much fluid should you drink a day

The recommended daily fluid intake for most adults is about 2 to 2.5 liters (roughly 8 glasses) per day, which includes fluids from all drinks and foods consumed. More specifically, the U.S. National Academies recommend about 3.7 liters (15.5 cups) for men and 2.7 liters (11.5 cups) for women, including all beverages and water content in food. Fluid needs vary depending on age, physical activity, climate, health conditions, and pregnancy or breastfeeding status. Generally, drinking according to thirst and adjusting for sweating or exercise is advised to maintain proper hydration.