It just empties out your bowels. You may walk around with a pound or two of food and/or fecal matter in the pipe waiting to come out at any given time. Normally you eat a bit every day, and defecate a bit too, keeping roughly the same amount inside of you. A colon cleanse just empties it out all at once. As soon as you eat again, the process goes back to normal, and you gain that pound or two back again.

I’ve never had a problem with weight, but what I DO know is that the amount you lose or gain doesn’t really rely on the amount of tea you drink - or don’t.

I can tell you that because last Christmas I was carrying an extra 5kg of baggage. Then, over the summer when I was being way more active and eating less often, I’d lost all 5 and more.
Without changing my tea routines whatsoever.
So with tea you can gain,lose, keep weight. It’s not exactly connected.
It’s just REALLY GOOD and HEALTHY TOO!

Or at least I think so.
Just keep up a balanced diet.
A thing that works for me is having a roughly 1200calorie thing per day. No, i don’t count calories. I just keep in mind that if i eat this bag of crisps, I can’t have a burger at the food court cause that will already be like 1000 and i’ll want another snack.

Good luck,
and GO TEA!!!!!