Metamucil is a soluble fiber supplement. Its active ingredient is psyllium husk. At first, the thought of using a fiber supplement for diarrhea might sound counterintuitive. But, psyllium husk is a natural gel-forming fiber that improves stool form and reduces symptoms in chronic diarrhea and constipation. 

Unlike other soluble fiber supplements, psyllium does not cause gas because it’s not readily fermented in the large intestine.

Besides normalizing stool output, psyllium can lower lousy cholesterol and improve blood sugar control. This makes it a great choice for people at risk for cardiovascular disease or diabetes.

If you or your healthcare provider feel you might benefit from a trial of psyllium, we suggest you choose a pure psyllium seed husk powder versus Metamucil. Metamucil has lots of unnatural additives, including food colorings and sweeteners. 

In our experience, the powder form is more effective than capsules. Be sure to drink extra water no matter which form you take it.