Because of the lack of clinical trials on detox and colon cleansing you might wonder if they are necessary. Not everyone eats the same foods or takes the same drugs that may prevent your system from operating normally, yet there are plenty of people who do and they have legitimate problems with their colon, stomach and blood; such as Candida, chronic constipation or parasites. For those who have these types of problems, they suffer greatly and the issues do not go away on their own. The standard American diet may be one of the biggest reasons that there is now an epidemic of blocked and sluggish digestive systems caused by the over eating of refined and processed foods. This has lead to many people ending up in the hospital waiting rooms usually to finding relief by a colonic procedure. Conversely those who take a good quality natural cleanser can be relieved within hours, feel invigorated and more productive on a daily basis.