Most people don't do colonics, I don't either, but Andreas Moritz says it is important. I do make sure that my intestines are pretty empty. 3 evenings before I use Oxypowder or one time when I was out I did a tsp Epsom Salts the 3 evenings before, but I might be the only one that does that. I like to be empty so only water will come out after the flush so it easier to see what came out, most stuff floats.

I think it's especially important if you have skin problems. I have Acne and eczema and they'll get worse if I don't get a colonic after a flush.