To fix a sluggish digestive tract, you must understand the basic plumbing of the human body. When waste material moves too slowly through your large intestine, your body reabsorbs excess water from it, leading to hard stools and chronic constipation. At the same time, this delayed transit allows bacteria to ferment the trapped food, creating an excess of gas that expands your stomach wall. The oolong tea and lemongrass inside this herbal blend work practically to stimulate the smooth muscles of your gut, encouraging normal, predictable elimination.