Learn how the female metabolism works differently from men’s, and why calorie restriction or fasting done at the wrong time can lead to more harm than good. This section breaks down the two key energy systems in the body, how fasting activates them, and how to work with your biology rather than against it for better energy, brain function, and body composition.

Gain a foundational understanding of the Infradian Rhythm the second biological clock unique to women and how it governs your hormones across a roughly monthly cycle. We’ll unpack the roles of estrogen, progesterone, LH, FSH, and cortisol, and how these fluctuating hormones interact with your appetite, mood, and stress responses throughout each phase.

Discover the intricate ways in which female hormones shape your metabolic flexibility. You’ll learn why estrogen improves insulin sensitivity, how progesterone affects fuel usage, and how to identify which phases are best for fasting versus nourishment. This section empowers you to use food timing and energy intake as tools for hormonal support, not suppression.

Fasting isn’t for everyone and that’s important to say upfront. If you are currently pregnant, underweight, have Type 1 diabetes, or a history of eating disorders, this masterclass isn’t the right fit. We’ll explain why and offer alternative routes for healing. For women in good health, however, this is your guide to approaching fasting with safety, strategy, and science-backed confidence.