The way it works is to relieve all of the toxins and stress your body is subjected to by 'everyday' dietary mistakes, like cooking food (causing dirty protein for example)
Cooking food can have benefits by oxidizing dangerous compounds in raw foods such as goitrogens, certain enzymes such as thiaminase and pathogens. It can also make certain foods easier to digest and increase certain nutrients.
and wheat (which impairs digestion, and digestion plays a role in more than you can imagine).
Wheat is only an issue in cases of gluten intolerance or true Celiac disease. Otherwise there is not an issue and it can even have benefits such as providing fiber, protein and phytates that bind free iron and heavy metals.