Does drinking coffee affect estrogen?

The relationship between coffee consumption and estrogen is not direct, but excessive intake may have indirect effects on estrogen levels.

Caffeine may influence estrogen levels in women, yet this impact is typically related to the woman's menstrual cycle, age, and the amount of coffee consumed. Caffeine is the primary component of coffee and does not contain sex hormones; therefore, moderate coffee consumption generally does not directly affect estrogen levels under normal circumstances. However, prolonged heavy consumption of strong coffee at night may lead to mental stimulation, insomnia, and vivid dreams, which could indirectly affect ovarian endocrine function and consequently influence estrogen levels.

Thus, the effect of coffee on estrogen levels is indirect and varies significantly among individuals. The specific impact may depend on a person's physiological condition and coffee consumption habits. It is recommended to consume coffee in moderation in daily life and avoid excessive intake. Particularly at night, one should尽量 avoid drinking strong coffee to prevent disturbances in sleep quality, which might subsequently affect estrogen levels.