Tea and coffee consumption impacts on bone health and caffeine sensitivity

Research suggests that tea may be more beneficial for bone health than coffee. A study involving nearly 10,000 older women found that tea drinkers had slightly higher hip bone density compared to non-consumers. Furthermore, a 2025 study of approximately 50,000 postmenopausal women indicated that tea consumption is associated with higher bone density in several skeletal areas and a lower probability of osteoporosis and fractures.

While moderate coffee consumption (2–3 cups per day) does not appear to harm bone health, consuming more than five cups daily has been linked to lower bone density. Experts suggest the antioxidants in tea may contribute to its bone-strengthening benefits.

Regarding caffeine sensitivity, individuals react differently to caffeine due to how quickly their bodies eliminate the substance. Caffeine works by blocking adenosine, a chemical that promotes sleepiness, effectively masking fatigue rather than providing actual energy. The rate at which the liver breaks down caffeine is influenced by genetics, specifically the CYP1A2 gene. This variation explains why some people can consume caffeine without sleep disruption, while others experience jitters, anxiety, or rapid heartbeat.