High coffee intake linked to lower bone density in older women, study finds

In a ten-year observational study, Flinders University scientists tracked the beverage choices of 9,704 women aged 65 and older, recording bone mineral density at the femoral neck and hip. Results published in Nutrients indicate that more than five cups of coffee per day corresponded with reduced bone density, while regular tea consumption was linked to higher total hip density. Moderate coffee consumption (about two to three cups) did not appear to harm bone health.

The association between coffee and lower femoral neck density was stronger among participants who drank more alcohol, and the positive link between tea and bone density was more pronounced in women with obesity. The authors note that osteoporosis remains a major public-health issue, especially for post-menopausal women.