The HRAS gene provides instructions for making a protein called H-Ras that is involved primarily in regulating cell division. Through a process known as signal transduction, the H-Ras protein relays signals from outside the cell to the cell's nucleus. These signals instruct the cell to grow or divide.
For both diarrhea and constipation, you want to get more soluble fiber, such as oats, bran, and barley.For constipation only, you can add in some insoluble fiber as wellâfruits and vegetables are good sources.eans and peas contain significant amounts of both soluble and insoluble fiber. The bottom line: soluble fiber is good for both diarrhea and constipation. Foods high in insoluble fiber are best for constipation only.
1 Eating more fiber. 2  Dietary fiber often helps reduce IBS symptoms in both patients who have constipation as well as those who have diarrhea. 3  Whole-grain breads and cereals, fruits, and vegetables are good fiber sources. 4  Starting a high-fiber diet may cause gas and bloating for a few weeks.any over-the-counter medications can help relieve symptoms of IBS. These include: 1  Fiber supplements or mild laxatives such as Milk of Magnesia to relieve constipation. 2  Anti-motility medications such as loperamide (Imodium) or Kaopectate to reduce diarrhea.