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
> Breakfast is the first meal of the day usually eaten in the morning. The word in English refers to breaking the fasting period of the previous night.
To be honest, "breakfast" was more probably originally meant as "breaking the discipline" (see form "fasten"), and only then translated to the action without general involvement of discipline.
Not convinced that not drinking water during the day is a good idea, especially in hot countries