Activated charcoal remains in the intestinal tract where it is very well tolerated. There, it will absorb whatever is unwanted inside the body (food additives, pesticide or fertilizer residues, toxic bacteria from fish or shellfish).    The universal detox  In addition to detoxifying the body, Charcoal regulates bowel function. Thus, it can be used successfully in cases of diarrhea, gastroenteritis, stomach pain, aerophagia, flatulence, as well as in cases of intestinal infections accompanied by constipation and intestinal fermentation.