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 Causes. Not consuming enough fiber or enough liquid can cause constipation. Other potential causes include illness, lack of exercise, certain medications, misusing laxatives, thyroid or digestive system problems, dehydration and ignoring the urge to have a bowel movement.