Your daily coffee habit may negatively impact bone density in postmenopausal women, according to a recent study from Flinders University.
A study conducted by researchers at Flinders University has revealed a potential link between high coffee consumption and lower bone mineral density (BMD) in postmenopausal women. The findings, published in the journal Nutrients, suggest that women who regularly consume coffee may want to reconsider their daily habits, particularly in favor of tea.
The researchers analyzed the coffee and tea consumption of 9,704 women aged 65 and older over a decade. During this period, they measured the participants’ BMD at the femoral neck and hip, which are common sites for osteoporosis-related fractures.
The study found that drinking tea was associated with higher total hip BMD, while consuming more than five cups of coffee daily correlated with lower BMD. Interestingly, moderate coffee consumption—defined as two to three cups per day—did not show any negative effects on bone health.
Additionally, the researchers noted variations based on other health and lifestyle factors. For instance, coffee consumption was linked to lower femoral neck BMD among women who also consumed higher amounts of alcohol. Conversely, the positive association between tea and bone density was more pronounced in women with obesity.
Osteoporosis, characterized by low BMD, poses a significant global public health concern, affecting individuals across all ages, genders, and ethnicities. According to the study, approximately one in three women and one in five men aged 50 and older experience fractures related to osteoporosis.
Women are particularly at risk due to generally lower bone mass and accelerated bone loss following menopause. In the United States, the number of adults aged 50 and older with low BMD in the hip or spine is projected to increase by 17.2 million by 2030, contributing to rising healthcare costs and long-term disabilities associated with osteoporosis-related fractures.
The researchers emphasized the importance of dietary factors in preventing noncommunicable diseases and their potential influence on bone health. Coffee and tea are among the most widely consumed beverages globally, making their impact on health particularly relevant.
Co-author Ryan Liu explained that catechins, compounds abundant in tea, may promote bone formation and slow down bone breakdown. In contrast, coffee’s caffeine content has been shown in laboratory studies to interfere with calcium absorption and bone metabolism, although these effects are relatively minor and can be mitigated by adding milk.
Liu reassured that the study’s findings do not necessitate giving up coffee entirely or consuming excessive amounts of tea. Instead, they suggest that moderate tea consumption could be a simple way to support bone health, particularly for women who also consume alcohol.
Lisa Young, a registered dietitian and adjunct professor of nutrition at New York University, cautioned that while the study offers valuable insights, its findings should be interpreted with caution. Since the study followed women over time without assigning them to specific beverage consumption, it can only show associations rather than definitively prove that coffee weakens bones or that tea strengthens them.
Young pointed out some limitations of the study, including variations in participants’ lifestyles and its focus on bone density rather than actual fractures. Symptoms of osteoporosis and early bone loss can include back pain, loss of height over time, and stooped posture, according to the Mayo Clinic.
Ultimately, Young reassured the public that moderate coffee intake appears to be safe, and there is no need to switch beverages solely for the sake of bone health. The most effective ways to protect bone health remain adequate intake of calcium and vitamin D, regular physical activity, and avoiding smoking and excessive alcohol consumption.
In conclusion, while the study highlights the potential impact of coffee and tea on bone health, moderation is key, and individuals should focus on established methods for maintaining strong bones.
These findings were reported by Fox News Digital.