ITT I am pulling:
A "clean" diet is not neccesarily healthy-you can eat nothing but chicken, brown rice, nuts, etc. and still be unhealthy in terms of micronutrients.
People, especially those looking to enhance their physique, put more emphasis on macronutrient intake and not micronutrient intake, and would rather fulfill calorie needs while disregarding vitamins/minerals.
A McDonald's sandwich is "dirty" yet contains more micronutrients than "clean" chicken and brown rice. (This goes along with my above statement and also shows how untrue the terms clean and dirty are. This does not mean go about fulfilling your dietary needs with McDonald's because other health factors should be observed (satiety, processing, preservatives, etc.)
Essentially a Pug quote, but overall, one should consume most of their dietary needs from wholesome, unprocessed foods but can practice flexibilty in their diet and therefore enjoy anything in their daily foods.
Thread to be a sticky? Say aye!