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 is hard, dry, lumpy stools that are difficult or painful to pass and which may be accompanied by bloating and discomfort. Chronic dehydration, lack of exercise, and low amounts of dietary fiber can all lead to developing constipation.