Hey, there’s been no extensive studies on this. As such I would recommend doing the fast and treating it as a dose of rapamycin. Then a week from your last fasting day, take your first dose of rapamycin. The fast and the rapamycin are both inhibiting mTOR, so both confer a therapeutic benefit.
One of our scientific/medical advisors, Dr. Blagosklonny, wrote an article on this.
The references article says …” I suggest that intermittent rapamycin administration be combined with simultaneous intermittent fasting or VLCD, as well as physical exercise.”. Simultaneous vs sequential.