The Intermittent Fasting is a good life plan, the problem with Intermittent Fasting is that it does not speak or give a structure of what to eat, nor does it give a variable structure for the woman of how many hours she should not eat and how those hours should vary. You cannot have one meal a day every day, you cannot fast 16 hours every day. It has to have changes, if you don't change it, it won't work out in the long term and that's why we begin to see that everything works well at first and then it doesn't work, after which what is known as a rebound occurs.
Ayuno Lunar has no rebound because it is not a diet, it is a resolution of a life plan. It is a plan created exclusively for women taking into account the hormonal cycle. The only thing that Intermittent Fasting and Ayuno Lunar have in common is that in both you are fasting.