This study investigated the effects of green tea on bone loss. The experiments were performed using 20 female rats. The researchers found that green tea had a protective effect against bone loss. This effect was also recognized as a possible means to fight oxidative stress (imbalance between free radicals production and the body´s antioxidant defenses). Further details can be found in the study.
C-L Shen, P Wang, J Guerrieri, J K Yeh, J-S Wang