What is psyllium husk?
Psyllium husk is a soluble, gel-forming fiber that comes from the seeds of the Plantago ovata plant. Mixed with water it forms a gel — which is why it's so widely used to support digestive regularity and stool consistency.
If you've used a fiber supplement before, there's a good chance psyllium was the active ingredient. It's one of the most studied and most commonly recommended fibers for everyday digestive support.1
Where it comes from
Psyllium is harvested from the husks of Plantago ovata seeds, a plant grown largely in India. The husk is the outer coating of the seed, and it's especially rich in soluble fiber.1,2
Why it forms a gel
Because it's a soluble fiber, psyllium absorbs water and swells into a soft, viscous gel. That gel holds moisture and adds gentle bulk as it travels — the mechanism behind its role in supporting regularity. We go deeper in how psyllium works with water.2
"One plant, one simple property — a soluble fiber that turns into a gentle gel in water."
What it's used for
Psyllium is commonly used to support digestive regularity and healthy stool consistency, and — as part of a healthy diet — soluble fibers like it have been studied for cardiovascular wellness. It's a bulk-forming fiber, not a stimulant laxative.2,3
How it's taken
Psyllium is mixed with water and taken promptly, before the gel thickens. Adequate fluid is essential — both for it to work and for comfort. If you're new to it, start with a small amount and build up; see how to start fiber without bloating.3
Talk with your physician before starting psyllium if you have difficulty swallowing, a history of bowel obstruction or narrowing, a medical condition, or take regular medications — fiber can affect how some medicines are absorbed.
These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure, or prevent any disease. Always follow product label directions and consult your doctor with questions about your health.
- MedlinePlus (U.S. National Library of Medicine). Psyllium. medlineplus.gov
- National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK). Fiber & constipation. niddk.nih.gov
- U.S. Food & Drug Administration. Soluble fiber & health claims. fda.gov
References point to U.S. public health authorities (FDA, NIH / NIDDK, MedlinePlus). Last reviewed June 2026.
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