Is intermitent fasting dangerous for health?

I have heard a lot about the benefits of intermittent fasting and it has good comments but I would like to know if it is as good as they say, what are the dangers of following this type of cure and obviously will have detractors by the rebound effect that can lead to nutrient deficits and anxiety or discomfort by skipping the main meal of the day.

I would like someone who knows how to expose the downside of following this regime