Final answer:
A lactating woman should aim to drink about 3.7 liters of fluid per day to meet her fluid needs.
Step-by-step explanation:
A lactating woman should aim to drink about 3.7 liters (15.6 cups) of fluid per day. This recommendation is the Adequate Intake (AI) for water set by the Food and Nutrition Board of the Institute of Medicine (IOM). It's important to note that this AI includes water from all dietary sources, including food and beverages. Therefore, a woman can meet her fluid needs by consuming a variety of liquids, such as water, milk, juice, and soups.