To hear audio pronunciation of this topic, purchase a subscription or log in.

1. An infusion of a medicinal plant.
2. The leaves of the plant Thea chinensis or Camellia sinensis, from which a beverage is made by steeping the leaves in boiling hot water.

Several pharmacologically active ingredients (caffeine, theophylline) and antioxidants, including polyphenolic compounds, and sufficient fluoride to help prevent tooth decay are present in tea. The caloric content is negligible unless sugar, honey, and/or milk is added prior to consumption.
SEE: caffeine; SEE: withdrawal, caffeine

Descriptive text is not available for this imagePatients with a history of kidney stones that contain oxalate should limit their consumption of tea.

There's more to see -- the rest of this topic is available only to subscribers.