This is the reason that everyone knows, but it bears repeating. Juice cleanses give your body a break from refined sugars, animal, products, and chemical-laden processed foods. That alone gives your body the opportunity to rid itself of those toxins because you aren’t immediately replacing them with new ones. This is why it’s extra-important to use organic produce. Also, between all that juice and the filtered water in-between your juices, you’re extremely well-hydrated and aiding your body in flushing out toxins. Plus, many of the fruits, veggies, and herbs, like watermelon, cucumber, and coriander (cilantro) have added detoxing-properties.