A healthy adult should aim to consume 8 cups (2 litres) of fluid every day.
Therefore, two to three cups of tea daily can significantly contribute to the body’s hydration. It is a common myth, that tea or any other caffeine-containing beverage which will cause a diuretic effect which will have a negative impact on the body’s hydration level.
In a recent review of studies on the effects of caffeine ingestion and fluid balance (57) made the following three conclusions: