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Encyclopedia of Nutritional Psychology

Menstrual cycle

Evidence-informed definition Updated September 3, 2025 How to cite this entry

The recurring sequence of hormonal and physiological changes that prepares the female body for a possible pregnancy. Typically lasting around 28 days, the menstrual cycle includes the follicular phase, ovulation, the luteal phase, and menstruation.

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Written by Lyanna Tran
Reviewed by CNP Encyclopedia Editorial Board
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Lyanna Tran. (2025). Menstrual cycle. In Encyclopedia of Nutritional Psychology. The Center for Nutritional Psychology.

https://www.nutritional-psychology.org/encyclopedia/menstrual-cycle/
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