Kale is one of our favorite greens for high Pitta and Kapha. Unlike spinach, it is cooling for pitta. Fiber and bitter taste stimulate peristalsis, encouraging regular elimination of the bowels. Bitter taste also improves the flow of bile, reducing gallbladder and liver congestion. Bile also stores blood borne toxins after they are neutralized by the liver. Flushing bile releases these toxins from the body. It is an excellent cleansing spring tonic.