Some call it intermittent fasting. We call them Cleanse Days. They’re a fantastic way to work toward losing weight, burning fat, and giving your body’s systems the chance to rid toxins naturally. You’ll hear a lot about Cleanse Days at Isagenix (if you haven’t already) and the impact they have on physical transformations. But, how they work can sometimes feel like a mystery, especially because we can’t see what’s going on inside our own bodies.