Too much coffee may weaken bones, study finds
Following nearly 10,000 older women for 10 years, researchers found that tea drinking was associated with slightly higher hip bone density. Moderate coffee consumption did not appear harmful, but drinking more than five cups a day was linked to lower bone density. The findings suggest tea may offer a small bone-health boost, while excessive coffee could carry some drawbacks.
A recent study from Flinders University reveals that coffee and tea may impact bone health differently in older women. Monitoring nearly 10,000 women aged 65 and older for a decade, researchers discovered that tea consumption was linked to slightly higher bone mineral density (BMD) in the hip, while moderate coffee intake had no significant effect.
However, excessive coffee consumption—more than five cups daily—was associated with lower BMD, suggesting potential negative effects. The study, published in Nutrients, also found that tea's catechins may promote bone formation, while coffee's caffeine interferes with calcium absorption. Researchers caution that while the differences are modest, very high coffee consumption, particularly in women who drink alcohol, may not be ideal.
They emphasize that calcium and vitamin D remain crucial for bone health, and moderate tea consumption could be a simple way to support bone health in older women.
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