Which of the following is a suggested treatment for IBS?

Fiber supplementation is a well-accepted treatment for Irritable Bowel Syndrome (IBS) as it helps to regulate bowel movements and can alleviate both constipation and diarrhea, which are common symptoms of IBS. Dietary fiber adds bulk to the stool and can improve gut motility, making it particularly beneficial for individuals who experience constipation-predominant IBS. Additionally, for those with diarrhea-predominant symptoms, certain types of soluble fiber can help absorb excess fluid in the intestines, thereby reducing the frequency of bowel movements.

Incorporating fiber into the diet can take place through various sources, such as fruits, vegetables, whole grains, and legumes, or through fiber supplements which can be tailored to fit the individual’s needs. It's important to introduce fiber gradually to minimize potential gastrointestinal discomfort.

Other treatment options, while they may have contexts in IBS management, do not hold the same foundational support in clinical guidelines as fiber supplementation does.