just to share
"Most foods contain a mixture of soluble and insoluble fiber. Both are important in treating constipation. Soluble fiber is contained in oats, apples, lentils, barley, breads, and cereals. It is able to mix evenly with water, forming a soft gel. Insoluble fiber is contained in raw wheat bran, other whole grains, and fruits and vegetables. It mixes unevenly with water, forming a soft pulp. Your body does not absorb soluble or insoluble fiber during digestion. Fiber contributes volume to the stool mass, making it easier for the colon to push and propel larger and softer stools out of the body. Insoluble fiber encourages contraction of the colon.
Both fiber types contribute volume to individual stool masses. A larger mass of stool is easier for the colon to push against and propel, so larger, softer stools are easier to move and pass.
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