|You have drank today. Another water ration won't allow you to restore any more today.|
Nothing tastes better after a long day of murdering Zombies and sifting through the sand than a nice Water Ration. Staying hydrated is crucial to a long life in the post-Zombie apocalypse, and there's no other way to do that than by drinking plenty of healthy, life-giving water.
Also prevents thirst from worsening during the attack (i.e. turn from nothing to thirsty, or thirsty to dehydrated). Does not prevent dehydration from causing death though.
Status is removed automatically at midnight.