All of our food and water have been contaminated with toxins of all sorts. Unless you buy organic produce, all fresh foods can contain numerous applications of pesticides, herbicides, fungicides, heavy metals, chemicals, drugs, growth hormones, parasite eggs, and cobalt radiation. With packaged foods, the industry adds numerous chemical preservatives. Any and all of these, when ingested , build up in the tissues and lead to organ and immune system impairment Dr Dodd's holistic methods will help neutralize these toxins.