Choan, E., Roanne Segal, Derek Jonker, Shawn Malone, Neil Reaume, Libni Eapen, and Victor Gallant. “A prospective clinical trial of green tea for hormone refractory prostate cancer: an evaluation of the complementary/alternative therapy approach.” In Urologic Oncology: Seminars and Original Investigations, vol. 23, no. 2, pp. 108-113. Elsevier, 2005.

Rooibos tea is anti-inflammatory in nature, which means that it reduces blood pressure and scavenges free radicals like other antioxidants. Quercetin, another powerful antioxidant found in rooibos tea, has been linked to preventing a wide variety of heart conditions. It promotes an increase in HDL cholesterol (good cholesterol) and inhibits the LDL cholesterol (bad cholesterol) from binding to the walls of arteries and blood vessels.