The laxative properties of Psyllium are due to the ability of the mucilage portion of the seed husk to absorb water, in
a similar fashion as a sponge. This swelling creates a large gelatinous mass that applies pressure to the bowel
wall and thereby, stimulates more frequent contractions of the muscles that rhythmically contract to propel fecal
matter through the large intestine. Due to the high water content of this gelatinous fecal mass, the developing fecal
matter is softened, and hydrated, provided suf icient water is ingested to allow this to occur. Thus, as a bulk-
forming laxative, Psyllium supplementation encourages more rapid movement of fecal contents through the large
bowel, softens the stool for easier elimination, and by absorbing water it may help to dilute the effects of bowel
carcinogens; a means proposed to reduce risk of colon and rectal cancers. 3,6
Studies show that Psyllium is highly effective in relieving lifestyle-related and functional constipation, but not in
cases caused by diseases of the intestinal tract. 7
In functional cases, Psyllium has been shown to be bet er than, or at least as ef ective as, standard laxative
medications (e.g., docusate sodium). Psyllium also has fewer side ef ects than most other laxative medications
and of ers bet er stool consistency. 6