Various types of potatoes. A staple food, or simply a staple, is a food that is eaten routinely and in such quantities that it constitutes a dominant portion of a standard diet for a given people, supplying a large fraction of energy needs and generally forming a significant proportion of the intake of other nutrients as well.
Constipation is defined medically as fewer than three stools per week and severe constipation as less than one stool per week. Constipation usually is caused by the slow movement of stool through the colon.
Constipation can happen for many reasons, and constipation may have more than one cause at a time. Among the most common causes of constipation are. slow movement of stool through the colon. delayed emptying of the colon from pelvic disorders, especially in women. a form of irritable bowel syndrome (IBS) that has symptoms of both IBS and constipation, also called IBS with constipation, or IBS-C.