>>asim+(OP)
Ramadan has little to do with intermittent fasting: the former is a religious prescription enforced by law in some countries [1], the latter is completely up to the individual.
>>qntty+Th1
Well if going 10 hours (say in Scotland in winter) without food is "fasting", I do that pretty much every day, I rarely eat or drink between 2200 and 0900, and rarely eat between 2000 and about 1230
Not convinced that not drinking water during the day is a good idea, especially in hot countries