Abstract: A method for increasing bone mineral density, that includes the substantially daily consumption of at least one cup of tea for a period of years. Preferably, such consumption continues for at least about six years. Where utilized as a treatment for osteoporosis rather than as a preventative measure, it is preferred that the tea consumption be accompanied by treatment with osteoporosis-treating pharmaceutical agents, such as anti-resorptives or bone forming agents. The method should include measurements of bone mineral density, preferably occurring on a periodic basis.