Too much coffee may weaken bones

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.

Too much coffee may weaken bones. Too much coffee may weaken bones, Science News from research organizations Too much coffee may weaken bones, Date: September 2, 2026. Published in Nutrients, the study tracked nearly 10,000 women aged 65 and older for 10 years.

The researchers examined whether regular coffee and tea consumption was associated with changes in bone mineral density (BMD), an important measure used to assess osteoporosis risk. Osteoporosis is a major health problem worldwide. It affects roughly one in three women over age 50 and is responsible for millions of fractures each year.

Because billions of people drink coffee or tea every day, even small effects on bone health could have broad implications.