The gastrointestinal tract is the tract from the mouth to the anus which includes all the organs of the digestive system in humans. Food taken in through the mouth is digested to extract nutrients and absorb energy. But the gut does so much more than extract nutrients and absorb energy...  it is closely ruling hormone health, skin health to mental health, and even toxin and waste elimination (detoxification). About 70 -80 percent of the immune system is in the gut, so it is crucial to keep our gut health at an optimal level. Simply put: a healthy gut is a sign of good health.

An Extremely Detailed Guide to solve constipation: Constipation; Symptoms, Causes, Testing, Treatment & Prevention