Are you curious about the effects of intermittent fasting (IF) on women's menstrual cycles? IF, an eating pattern where you alternate between fasting and eating during specific time windows, has received a lot of attention due to its potential health benefits. Many people experience benefits such as weight loss, improved energy, and increased focus. But what about women and their menstrual cycle? Is fasting different for women than for men? In this blog, we delve deeper into the relationship between IF and the female cycle, and provide insights into when IF may or may not be suitable. For more background information on IF, check out our previous FAQ.
The Female Cycle
Women's menstrual cycles consist of four main phases: menstruation, the follicular phase, ovulation, and the luteal phase. In each phase, your hormones change, which affects how you feel, how much energy you have, how fast your metabolism works, and how hungry you are. It's important to understand how this cycle works so you can adjust your eating patterns to what your body needs at different times of the month.
Fasting during the menstrual phase
Fasting during the menstrual phase is not always advisable, as your body needs rest and recovery at that time. It is a period when your hormones drop and your uterus sheds its lining. During this phase, listen carefully to your body and eat when you are hungry. Your body is already working hard to cleanse and recover, so try not to over burden it by fasting. Instead, focus on healthy foods that give you energy to get through this phase. In this blog we explain which ones they are.
Fasting during the follicular phase
In the days after your menstruation, during the follicular phase, your estrogen levels will rise. This will likely give you more energy and focus. During this phase, your metabolism slows down, meaning you will feel less hungry than in other weeks. This is a good phase to try intermittent fasting. For example, you can have an eating window of 8 hours and fast for the other 16 hours. Always ensure you get enough nutrients.
Fasting during the ovulatory phase
Around day 14 of your cycle, ovulation occurs. This is the period when you are fertile. During this phase, your estrogen levels peak, which can give an extra boost in energy and alertness, making you feel more powerful and happier. You can still do IF during this phase, but try not to fast for longer than 12 to 13 hours. If you are trying to get pregnant, it may even be advisable to stop fasting altogether. This gives your body the reassuring feeling that there is enough nutrition available. Always ask a professional for advice; our therapists are ready to assist you!
Fasting during the luteal phase
The luteal phase begins after ovulation and ends with the start of menstruation. During this phase, the hormone progesterone is produced. This hormone ensures that your uterine lining thickens so that a fertilized egg can implant there. Another effect of progesterone is that your metabolism speeds up. During this phase, your body uses about 200 to 300 calories more per day! That is why many women experience the well-known food cravings during this phase. You are also often a bit more sensitive to stress, your energy level may drop, and you may experience mood swings.
IF may be less suitable during the luteal phase because your body has a higher energy expenditure and because fasting can lead to increased stress responses. Especially in the week before your menstruation begins, it is less advisable to fast. Eat nutritious meals and avoid too much stress, as cortisol leads to a reduced production of progesterone.
Listen to your body
Every body is different, and what works for one person may not always work for another. Therefore, listen carefully to your own body and feel what you need.
If you notice that...
- Your menstruation becomes irregular or stops
- Your hair and skin look noticeably worse
- Your weight increases
- You are listless and have low energy
- Fasting negatively affects your life
Then stop fasting and always ask a professional for advice. Our therapists are happy to help you. Schedule a free consultation here.
