Until then you are still processing what is in the digestive tract walls, it is usually enemas or Bowel Cleanses to scrub those clean.
It takes between 2-3 days to reach ketosis, that is checked with over-the-counter diabetic test strips.
There are subtle signals from the digestive flora in the gut that tell you to eat, it is not your own thoughts alone disturbing you. The hunger signals die down a little after ketosis starts.
The best is not to hang out at home at mealtimes, and find good books and activities to do!