re: Could you explain in detail how intermittent fasting work?

It's not. Overall calories, followed by macronutrient content are much more important. Nutrition timing is about 5th or 6th in order of importance.

IF doesn't always mean shipping breakfast. The feeding window can be adjusted as you like.

As far as how it works, short if it is... By restricting the amount of time you can consume calories, one naturally consumers less overall calories.

It's just a tool.