This section of the book is from the "How and When to Be Your Own Doctor" book, by Dr. Isabelle A. Moser with Steve Solomon, published in 1997.
It is not wise to continue regular colonics or enemas once a detoxification program has been completed and you have returned to a maintenance diet. The body should be allowed its regular functioning.
But because enemas immediately lower the toxic load on the liver, I do recommend people use them for prevention of an acute illness (you feel like you are coming down with something), and for the treatment of acute illnesses such as a cold. I also like to take one if I have been away traveling for extended periods, eating carelessly. But do not fall into a pattern of bingeing on bad food, and then trying to get rid of it through colonics or laxative. This is bulimia, the eating disorder discussed earlier.
The Sheltonite capital "N" Natural capital "H" Hygienists do not recommend any colon cleansing, ever!. They think that the colon will spontaneously cleanse itself on a long water fast, but my experience learned from monitoring hundreds of fasters is that it doesn't really. Herbert Shelton also considered colon cleansing enervating and therefore undesirable. Colon cleansing does use the faster's energy but on the balance, colon cleansing saves more work on the part of an overburdened liver than it uses up.