Ayurveda is very popular in India and now it's getting popular in the west too.
I have never done a 24 hr fasting, My maximum fasting time has gone upto 18 hrs and I see it does help, but I see that 18Hr window sometimes give me some problems so now I do not exceed the 15 Hr window.
And in your case I can imagine with your little one around it will be the most challenging thing.
I have done the cleansing couple of times, by following a certain type of a diet and it has really been very helpful, may be I will put up on it some time.
Well in India too it's the same, this is becoming a big time business and so many are getting into it making it so commercial and then you really wonder how much of it is genuine.