Prolonged tea consumption may weaken bones
Japanese scientists discovered that prolonged consumption of tea could weaken bones due to high content of toxic fluorine. Particularly black and oolong tea are known to hold large amounts of the substance. According to the study, tea beverages contain up to 70% more fluorine than standard tap water, which typically has 0.8 milligrams per liter. Researchers concede that there is no immediate risk to human health, yet they call for a standard to be set and displayed on tea-based products in order to reduce the risk of bone rupture.