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By Dr. Mindy PelzRating: 4.8/5Released: 2022

Fast Like a Girl

"A Woman's Guide to Using the Healing Power of Fasting to Burn Fat, Boost Energy, and Balance Hormones"

ARC Integration Hook:

Powers ARC's female-specific dietary timing alerts and fasting cycle notifications.

In *Fast Like a Girl*, Dr. Mindy Pelz provides a guide to fasting specifically tailored for women. Dr. Pelz explains that while standard time-restricted feeding is highly beneficial, women must adapt their eating windows and fast lengths to align with the fluctuations of their monthly hormonal cycles (estrogen, progesterone, and luteinizing hormone).

The Three Hormonal Phases

Dr. Pelz breaks the menstrual cycle into three distinct phases, each requiring different fasting and nutritional strategies:

1. The Power Phase (Days 1-10): Estrogen is building. Estrogen thrives on low insulin and low cortisol. This is the optimal window for longer fasting windows (13 to 72 hours) and ketogenic, low-carb eating.
2. The Manifestation Phase (Days 11-15): Ovulation occurs. Estrogen peaks and testosterone rises. High stress or long fasts can disrupt ovulation. Keep fasting windows short (under 13-15 hours) and focus on hormone-supporting foods.
3. The Nurture Phase (Days 20 to the start of menstruation): Progesterone is building. Progesterone requires higher glucose levels and is highly sensitive to stress. Fasting during this phase raises cortisol, which suppresses progesterone, leading to anxiety, cravings, and disrupted sleep. Fasting should be avoided during this phase.
Important

> Forcing a strict 16:8 fasting protocol during the Nurture Phase can disrupt progesterone production, leading to sleep onset insomnia and mood imbalances.

How ARC Applies This

ARC integrates Dr. Pelz's menstrual-circadian alignment research by offering custom cycle tracking options. For female users, ARC adapts daily time-restricted feeding targets automatically, softening fasting gates and suggesting carbohydrate and cortisol-reduction routines during the Nurture Phase to protect sleep quality.

Reviewed ByARC Scientific Team
Author BiographyHolistic Health Expert & Author

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