If you search past posts you should find many discussions on this subject.
And no, you shouldn't feel left out or neglected or your topic was for some mysterious reason taboo.
Subjects get responded to rather randomly here.
Some get a big response, some go unanswered.
Just depends on who is hanging around and if they are wanting to weigh in on a particular subject.
Its not like going to a store where you get what your looking for every time.
Yes metabolism is slowed down by fasting.
What brings it back is exercise., particularly aerobic.
Look through "Pepe's" past posts. You will find that he has discussed all this over and over quite thoroughly.