Barnum was right!
On Web MD today is an expose of the use of 'colon cleaners' which are sold in $billions usually to those with poor education, as a substitute for expensive medical care (particularly on the radio on Sunday mornings) or those sucked in to the vitamin/additive field. As P.T. Barnum is supposed to have said "A sucker is born every minute." The more research done in the field on complementary medicine, the more we see people throwing their money, and possibly their health, away on worthless products. As practitioners interested in prevention we should pay more attention to helping people avoid these products.