The common recommendation to drink two liters of water daily is being reconsidered by health experts, who emphasize that individual needs can vary significantly. In France, the Health Insurance recommends that adults in good health consume between 1 and 1.5 liters of liquid water per day, with additional water coming from food sources like fruits, vegetables, and soups, which contribute approximately 20% of daily water requirements. This approach highlights the role of diet in overall hydration, recognizing that not all water intake comes from beverages alone. International health organizations, including the European Food Safety Authority (EFSA) and the US National Academy of Sciences (NASEM), suggest a total water intake—covering both drinks and food—ranging from 2 to 3.7 liters per day, with the exact amount depending on factors such as gender. However, for drinks alone, a target of 1 to 1.5 liters is seen as a practical guideline for most people in everyday life. These recommendations aim to provide a flexible framework that can be adjusted according to personal circumstances. For instance, individuals engaging in physical activity or exposed to high temperatures may require more water to compensate for fluid loss through sweating. Similarly, older adults may need to pay extra attention to their hydration, as they may experience a reduced sense of thirst with age. These considerations underscore the importance of tailoring water intake to individual needs rather than adhering rigidly to a one-size-fits-all approach. Experts encourage people to listen to their bodies and adjust their water consumption based on factors such as activity level, climate, and overall health. While staying hydrated is essential, the exact amount needed can vary, and there is no universal standard that applies to everyone. This evolving understanding of hydration needs reflects a more personalized and practical approach to maintaining health.