A decade-long analysis reveals how tea’s catechins may support bone health—while heavy coffee consumption poses risks, especially with alcohol.

By yourNEWS Media Newsroom

A new long-term study from Flinders University suggests that daily tea consumption is associated with slightly stronger hip bones in older women, offering a subtle but meaningful benefit in the fight against osteoporosis.

Published in Nutrients in late 2025, the research followed nearly 10,000 women aged 65 and older for 10 years, tracking their tea and coffee habits alongside bone mineral density (BMD) scans—a key predictor of fracture risk.

Tea’s Bone-Boosting Potential

The study found that women who drank tea regularly had modestly higher hip BMD compared to non-tea drinkers. Researchers attribute this to catechins, antioxidant-rich plant compounds in tea that may promote bone formation and slow bone breakdown.

“Even small improvements in bone density can translate into fewer fractures across large populations,” said Adjunct Associate Professor Enwu Liu, a co-author.

Coffee’s Mixed Effects

The findings on coffee were more nuanced:

  • Moderate intake (2–3 cups daily) showed no harm to bone density.
  • Heavy consumption (5+ cups daily) was linked to lower BMD, particularly in women with higher alcohol intake.

Caffeine’s interference with calcium absorption and dehydration risks may explain the negative effect, though adding milk could help offset some impact.

A Broader Context

While the study didn’t prove a direct reduction in fracture risk, it aligns with past research, such as a Mediterranean case-control study linking low tea intake to higher hip fracture risk. The team cautioned that subgroup findings—like stronger benefits for women with obesity—need further validation.

“Our results don’t mean you need to give up coffee or start drinking tea by the gallon,” Liu clarified.

A Simple Habit with Potential Benefits

The research highlights that bone health depends on multiple factors, including genetics, exercise, and nutrition. While calcium, vitamin D, and weight-bearing activity remain critical, the study suggests that daily tea drinking could be a supportive habit for aging bones—especially for the millions worldwide at risk of osteoporosis.

For coffee lovers, moderation is key. The findings offer a practical takeaway: a daily cup of tea might contribute to long-term bone strength, while excessive coffee could undermine it—particularly when combined with alcohol. In the quest for healthy aging, even small dietary choices may play a role.

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