Recent research highlights the impact of tea and coffee consumption on osteoporosis risk in older women. Osteoporosis, a condition marked by weakened bones, poses a significant threat to women over 50, affecting one in three. The hormone estrogen, crucial for maintaining bone density, declines after menopause, heightening this risk.
Study Overview
Conducted by public health researchers at Flinders University in Australia, the study involved nearly 9,700 women aged 65 and older in the US. Participants reported their tea and coffee consumption in surveys over a decade.
Bone Health Assessment
The researchers measured the women’s bone mineral density (BMD) in the hip and femur using X-ray technology. This method allowed for a precise evaluation of bone strength.
Findings on Tea Consumption
The study revealed that women who regularly consumed tea displayed significantly higher hip BMD. The presence of catechins in tea might contribute to this effect by bolstering bone-building cells. Additionally, tea appeared to be particularly beneficial for women with obesity.
Coffee Drinking Patterns
In contrast, coffee consumption presented more complex results. Women consuming over five cups daily were found to have lower BMD, indicating caffeine’s potential negative impact on calcium absorption. This effect was even more pronounced in women with a history of higher alcohol consumption.
Implications for Bone Health
While the majority of participants were White, limiting the generalizability of the findings, the research indicates that moderate tea intake could support bone health. Conversely, high coffee consumption may be counterproductive, especially for those who drink alcohol.
Expert Insights
Enwu Liu, an epidemiologist involved in the study, emphasized that while calcium and vitamin D are crucial for bone health, the type of beverage consumed may also play a role. He noted, “Enjoying a daily cup of tea may be more than just a comforting habit; it could contribute to stronger bones.”
The research is published in the journal Nutrients, shedding light on dietary choices that may influence osteoporosis risk in older women.
