Questions: Which of the following should count toward your total daily fluid intake? only water water and fruit juices water and any sugar-free liquids all fluids, including those containing caffeine

The answer is the last one: all fluids, including those containing caffeine.

Explanation for each option:

1. Only water: This option is too restrictive. While water is a significant part of daily fluid intake, other beverages and foods also contribute to hydration.

2. Water and fruit juices: This option includes more than just water, but it still excludes other beverages that can contribute to fluid intake, such as milk, tea, and coffee.

3. Water and any sugar-free liquids: This option expands the range of acceptable fluids but still excludes drinks that contain sugar or caffeine, which can also contribute to hydration.

4. All fluids, including those containing caffeine: This is the most comprehensive option. All fluids, including those with caffeine like coffee and tea, contribute to your total daily fluid intake. While caffeine has a mild diuretic effect, it does not offset the hydration provided by the fluid itself.

In summary, all fluids consumed throughout the day, regardless of their caffeine or sugar content, should be considered part of your total daily fluid intake.