You could but it won't be to your benefit.
Those ingredients will prevent your body from attaining maximum fasting potential.
Probably a bit like adding an additive to your cars gasoline that results in it going slower and having poor performance.

You should drink the water without adding anything. Anything you add will only induce hunger.

hello and welcome. You know, word to the wise, and the thoughtful: better in this forum to make the subject heading more specific, like "flavored water?" I pretty much guessed this would be the kind of question I'd find, but hoped it wasn't so.

"need help!" though is a lot like a trick to attract attention, and it might happen that when you (or someone else) really do "need help", like -- urgently, you won't get replies, or even those who will open the post. So, thinking of others, and thinking beyond the moment, is really the point here.

As for the flavoured water, sounds like the world of diet drinks and artifical flavorings. It also sounds as though you haven't read the FAQ or the suggested reading, (and I suggest you do) and I'm pretty sure someone else has already answered you.

best,
Chiron

You could flavor the water, but it wouldn't really help.

The reason has less to do with how flavoring agents would affect the fast (which in reality would be very miniscule) and much more to do with WHY you would even want to flavor water in the first place. There are only really two reason to be flavoring water during a fast.

1) You haven't overcome addiction to taste
2) Your water is of poor quality so you have to disguise it.

If your problem is option 2, then the fast is already going to have limited results because your water is polluted. If your problem is option 1, then the fast isn't really doing you any good because you haven't learned control of the body. In this case, the flavored water is just training wheels of detox, but once you start eating again you will just revert to whatever habits made you want to fast in the first place.

I really advise to try a juice fast if you really want to taste something.