According to a survey conducted in Japan in 2025, around *** percent of men were estimated to have used caffeine tablets within the past month. The share for women was much lower, at *** percent.
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National Center of Neurology and Psychiatry. (May 15, 2026). Estimated use of caffeine tablets in the past month in Japan as of December 2025, by gender [Graph]. In Statista. Retrieved September 09, 2026, from https://www-statista-com.libproxy.pcc.edu/statistics/1557384/japan-estimated-use-caffeine-tablets-past-month-by-gender/
National Center of Neurology and Psychiatry. "Estimated use of caffeine tablets in the past month in Japan as of December 2025, by gender." Chart. May 15, 2026. Statista. Accessed September 09, 2026. https://www-statista-com.libproxy.pcc.edu/statistics/1557384/japan-estimated-use-caffeine-tablets-past-month-by-gender/
National Center of Neurology and Psychiatry. (2026). Estimated use of caffeine tablets in the past month in Japan as of December 2025, by gender. Statista. Statista Inc.. Accessed: September 09, 2026. https://www-statista-com.libproxy.pcc.edu/statistics/1557384/japan-estimated-use-caffeine-tablets-past-month-by-gender/
National Center of Neurology and Psychiatry. "Estimated Use of Caffeine Tablets in The past Month in Japan as of December 2025, by Gender." Statista, Statista Inc., 15 May 2026, https://www-statista-com.libproxy.pcc.edu/statistics/1557384/japan-estimated-use-caffeine-tablets-past-month-by-gender/
National Center of Neurology and Psychiatry, Estimated use of caffeine tablets in the past month in Japan as of December 2025, by gender Statista, https://www-statista-com.libproxy.pcc.edu/statistics/1557384/japan-estimated-use-caffeine-tablets-past-month-by-gender/ (last visited September 09, 2026)
Estimated use of caffeine tablets in the past month in Japan as of December 2025, by gender [Graph], National Center of Neurology and Psychiatry, May 15, 2026. [Online]. Available: https://www-statista-com.libproxy.pcc.edu/statistics/1557384/japan-estimated-use-caffeine-tablets-past-month-by-gender/
