Thanks for asking! Plant Nanny was designed to encourage users to have fun while developing better water drinking habits. In order to keep the user interface as simple as possible and help new gardeners start cultivating healthy habits as quickly as possible, we only offer a means to record the amount of *water* you drink. You can always adjust the amount of water you record based on the water composition of the beverage you drink for the most accurate records!
To learn more about the water composition of your favorite beverages please visit: https://funnmedia.zendesk.com/hc/en-us/articles/236355388-How-Hydrating-Are-Drinks-Other-Than-Water