It passes through the small intestine without being completely broken down or absorbed. Instead, it absorbs water and becomes a viscous compound that benefits constipation, diarrhea, blood sugar, blood pressure, cholesterol, and weight loss. Sat isabgol absorbs water and becomes a thick, viscous compound that resists digestion in the small intestine. Its resistance to digestion allows it to help regulate high cholesterol, triglycerides, and blood sugar levels. It can also aid weight management and relieve mild diarrhea as well as constipation. Psyllium is a bulk-forming laxative. It works by increasing stool size and helping relieve constipation. Initially, it works by binding to partially digested food that is passing from the stomach into the small intestine. It then helps with the absorption of water, which increases the size and moisture of stools. The end product is bigger and easier-to-pass stools. The gel-forming fibers in psyllium can slow down the digestion of food, which helps regulate blood sugar levels. Because psyllium slows down the digestion of food, people should take it with food, rather than on its own, so it has a greater effect on blood sugar levels.