Final answer:
The DRI for water suggests that adult males need 3.7 liters and adult females need 2.7 liters daily, including water from beverages and food, with 20% coming from food. All types of beverages count towards these recommendations.
Step-by-step explanation:
The Dietary Reference Intakes (DRI) for water vary based on gender, with adult males recommended to have an Adequate Intake (AI) of 3.7 liters (15.6 cups) and adult females recommended to have an AI of 2.7 liters (11 cups). This recommendation includes water from all dietary sources, meaning both beverages and food. It is estimated that 20% of a person's daily water intake comes from food, so not only beverages are counted towards the DRI for water. Furthermore, all beverages, including juice and coffee, contribute to the total daily water intake.