A recent study conducted by researchers at Flinders University has examined the impact of coffee and tea consumption on bone health in women aged 65 and older. Published in the journal Nutrients, the study analyzed data from nearly 10,000 participants over a decade, focusing on changes in bone mineral density (BMD), a key indicator in assessing osteoporosis risk.
Osteoporosis, which affects one in three women over 50, leads to millions of fractures annually, highlighting the importance of understanding factors that influence bone health. The research utilized information from the Study of Osteoporotic Fractures, tracking beverage intake and BMD at critical areas such as the hip and femoral neck.
The findings indicated that women who consumed tea had slightly higher total hip BMD compared to those who did not drink tea. While the increase was modest, it was statistically significant and suggests that even small improvements in bone density could reduce fracture rates across larger populations. Conversely, coffee consumption produced varied results. Moderate intake of two to three cups per day did not show harmful effects, but consumption exceeding five cups was linked to lower BMD. This was particularly concerning for women with a higher lifetime alcohol intake.
Researchers noted that tea contains catechins, compounds that may enhance bone formation, while caffeine in coffee might interfere with calcium absorption. The study’s authors advise that while moderate coffee drinking is generally safe, excessive consumption may not be advisable, especially for women who consume alcohol.
Despite the statistical significance of these findings, the researchers conclude that no drastic lifestyle changes are necessary. Instead, they suggest that daily tea consumption could serve as a simple measure to support bone health in older women.