Buildup?
Severe constipation can occasionally progress to fecal impaction, in which a large, hard mass of stool becomes stuck.
That is a genuine medical condition, but it is very different from the claim that healthy people routinely carry kilograms of old, toxic waste in their colons.
Bottom Line
There is no good medical evidence that a drink, tea, supplement, or “detox” can safely remove 15 kilograms of waste from a healthy person’s colon overnight.
For ordinary constipation, safer approaches include adequate fiber, appropriate fluid intake, regular movement, and attention to