Negative Hydration -
The Full Picture.
Every hydration tracking app counts what you drink. None of them, until Ritual, counted what those drinks cost you. Alcohol is a diuretic. So is caffeine above moderate doses. Black coffee consumed before a workout does not produce the same net hydration outcome as the same volume of water. Tracking only positive intake produces a number that does not reflect actual hydration status.
Ritual's negative hydration system logs dehydrating drinks with negative hydration values. An alcoholic drink logged in Ritual reduces your daily hydration score by the accurate net value it represents - the fluid consumed minus the diuretic effect. The result is a daily hydration score that reflects reality, not a count of liquid consumed.
Hydration is not a count of glasses. It is a physiological state. A system that ignores the drinks that work against you cannot accurately represent that state.
This distinction matters for athletes who drink recreationally. The standard hydration tracking model produces a false sense of adequacy when alcohol is consumed alongside water. Ritual's model shows the actual net position, which is the number that has physiological consequences.
Ritual's drink library includes all major beverage categories with accurate net hydration values. Dehydrating drinks reduce the daily score. The result is a hydration metric that accurately reflects physiological status, not intake volume.