01/09/2026
Fasting…is it one size fits all? In short, no! How your body responds to a fasting window depends heavily on your biology, stress hormones and life stage. Men: Often thrive on consistent 16:8 or 18:6 fasts with stable hormone responses. Pre-Menopausal Women: Far more sensitive to energy deficits. Shorter windows (12:12 to 14:10) and syncing with your menstrual cycle prevent hormonal and thyroid disruption. Peri- & Postmenopausal Women: Declining estrogen increases cortisol (stress) sensitivity and muscle loss risk. Moderate 12–14 hour fasts work best, paired with strength training and high-protein meals to protect bone and lean mass. See which s*x and stage of life you’re in and if you are wishing to fast, follow the guidelines specific to you, we are not small men!
