Dehydration is one of the most common causes of chronic constipation. The food you eat makes its way from your stomach to the large intestine, or colon. If you don't have enough water in your body already, the large intestine soaks up water from your food waste.

Increasing water content inside the gut can help soften stools and stimulate bowel movements. Mild dehydration can cause constipation. Increasing water intake may help relieve constipation