That's definately not true, also what's up with the hostile tone? "Clean" is pretty well understood as what's left after you finish an elimination diet. As i

That's definately not true, also what's up with the hostile tone? "Clean" is pretty well understood as what's left after you finish an elimination diet. As i just described it can be different for different people but in general, super high fat, super high carbohydrate, meals that are too large or too frequent, too much alcohol, lots of additives, lots of candy or cake, too many heavy metals from fish, too much fried food, too much low quality processed foods including cheap oils that has gone semi rancid, corn syrup, various carcinogens are all agreed upon across various a large spectrum of diets from Vegan to Paleo including nutrition research. It probably also depends on ones own gut flora. Pausing eating or just eating a pretty bland diet without above "luxuries" and you definitely get less of these things, that's partly why fasting works for a lot of people.