How do different religions define “fasting”?
I know that Muslims fast during Ramadan, which means no food or drink of any kind during daylight hours (sort of). (Other prohibitions too but I’ll stick with the fastin angle here.)
A related post asks about which Christians fast for Lent, although nowadays that usually means giving up something. Originally, it probably meant something else–but what?
Catholics (are there others?) at least at one time fasted on Friday, which meant no meat, although fish didn’t count as meat.
Jews fast on one day, I don’t remember which one or what the rules are.
Are there other religious fasting occasions? And what does “fasting” mean?
To keep this in GQ and out of GD, etc., please stick to the OP and let’s not talk about why one should fast (unless it’s essential to the answer), whether one should fast, health risks, etc.