What is psyllium?

Psyllium is a soluble fiber derived from the seeds of Plantago ovata, an herb grown mainly in India.

People use psyllium as a dietary supplementTrusted Source. It is available in the form of husk, granules, capsules, or powder. Manufacturers may also fortify breakfast cereals and baked goods with psyllium.

Psyllium can absorb water and become 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 and constipation.