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 Over-the-counter medications, such as loperamide (Imodium), can help control diarrhea. Some people will benefit from medications called bile acid binders, such as cholestyramine (Prevalite), colestipol (Colestid) or colesevelam (Welchol), but these can lead to bloating.  Anticholinergic and antispasmodic medications. These medications, such as hyoscyamine (Levsin) and dicyclomine (Bentyl), can help relieve painful bowel spasms. They are sometimes used for people who have bouts of diarrhea, but they can worsen constipation and can lead to other symptoms, such as difficulty urinating.