Psyllium seed husks act as a laxative by increasing indigestible fiber in the gut, which absorbs water to create a mass that stimulates bowel movements. | PixelsAway, Bigstock.com
Psyllium seed husks are found on the label of several pet foods, but little is said by way of marketing claims about what this ingredient is and why it might be beneficial to dogs or cats. Psyllium seed husks are the ingredient most commonly associated with Metamucil, the laxative and stool softener used medicinally to aid gastrointestinal regularity. As a laxative, it acts by increasing indigestible fiber in the gut, which absorbs water to create a mass that stimulates bowel movements for those that are constipated. For those afflicted with diarrhea, it binds the free water and slows the process of elimination.
