“Would fasting over 12 hours shrink your ovaries?” asks Barbie from Instagram. Here with our answer is Cynthia Thurlow, nurse practitioner and intermittent fasting expert.

According to Cynthia, fasting is mostly safe, but certain considerations should be taken for women who are cycling. Tune in to her full answer where she breaks down how fasting can be best used to work with your menstrual cycle.

For more from Cynthia Thurlow, check out her FREE Intermittent Fasting FAQ.