Transit time 

The longer the transit time, the longer the toxic waste matter sits in the bowels, allowing proteins to putrefy, fats to become rancid, and carbohydrates to ferment. The longer the body is exposed to rotting food in the intestines, the greater the risk of developing disease. Even with one bowel movement per day, there are still at least three meals’ worth of waste sitting in the colon at any given time.


Source: Internal Cleansing  by Dr. Linda Berry