This module explores the interconnected female hormonal network, including the HPO axis and the roles of estrogen, progesterone, androgens, and AMH in reproductive health. It examines how nutrition, energy availability, insulin, thyroid function, stress, sleep, and lifestyle influence hormonal and menstrual health. The module also covers essential nutrients, targeted supplementation, and a practical clinical framework for assessing symptoms, menstrual history, laboratory markers, and individual nutritional needs.