The terms proximal (from Latin proximus, meaning 'nearest') and distal (from Latin distare, meaning 'to stand away from') are used to describe parts of a feature that are close to or distant from the main mass of the body, respectively.
But, with Citrucel and/or Metamucil you can start with one teaspoon mixed in water or juice. If you have diarrhea don't use the preparation with artificial sweeteners. Use the one with sugar. I think artificial sweeteners (some of them) might cause more diarrhea.
It forms a gel in your gut. Look at what metamucil does in a cup of water. It gels up and swells. It will absorb water into a gel so it helps constipation because it will soften and help hard stools slide along. It helps diarrhea because it absorbs the excess water thickening it adding bulk to the stool.t seemed to help prevent constipation, but it didn't really improve my regularity necessarily. But yesterday, I decided to take about 3 teaspoons with 8 ounces of water, and today, for the first time in like a couple of months, I finally had a complete bowel movement.