"Tea consumption after diagnosis was inversely associated with the risk for mild depression," said Shu. "Lifetime tea consumption also was inversely related to depression. This is the first epidemiologic evidence that tea consumption may be associated with lower risk for depression among breast cancer survivors, although this was not a prespecified hypothesis. This inverse association was independent of other risk factors for depression."Since this study was conducted among Chinese women living in Shanghai, the type of tea most commonly consumed was green tea. Tea and its constituents contain high levels of caffeine and catechin polyphenols, which have demonstrated antioxidant, anticarcinogenic and anti-inflammatory properties.

The study is ongoing and will allow the investigators to evaluate how depression changes over time and to assess the long-term effects of exercise and tea consumption on depression among breast cancer survivors.

Source Vanderbilt-Ingram Cancer Center