There's no magical 'remove toxins after years of eating crap.' There are foods that are detoxifying because they're nutrient dense or high alkaline, but this 'detoxifying' comes after years of eating clean and healthy. will you see a dif before that- as in a few months in? Yes. But juice fasts are not it. The only thing juice fasts do is make people lose water weight and make standard american diet eaters think "wow, eating healthy sure was hard. I'll never do that again.'