Psyllium is a form of naturally-sourced fiber made from the husks of the Plantago ovata plant’s seeds. It sometimes goes by the name ispaghula.  Psyllium is mainly used as a viscous, soluble dietary fiber that is not absorbed by the small intestine.  This means it soaks up water in your gut and makes bowel movements much easier by adding bulk to the stool. It can be added to your diet to help promote regularity and improve occasional constipation. Psyllium works best when combined with water intake. The FDA recommends the following: NOTICE: This food should be eaten with at least a full glass of liquid. Eating this product without enough liquid may cause choking. Do not eat this product if you have difficulty in swallowing.