Yellow dock root is a blood purifier and general detoxifier, especially for the liver. Yellow dock root stimulates bile production which helps digestion, particularly of fats. Yellow dock root can stimulate a bowel movement to help remove lingering waste from your intestinal tract; it also increases the frequency of urination to assist in toxin elimination. Maintaining an efficient rate of waste elimination can help prevent toxins from accumulating in the liver, gallbladder and bloodstream, and helps circumvent the associated problems.