Psyllium Fiber Supplement. Gluten free. Heart health by lowering cholesterol (Diets low in saturated fat and cholesterol that includes 7 grams of soluble fiber per day from psyllium husk, as in Metamucil, may reduce the risk of heart disease by lowering cholesterol. One serving of Metamucil has 1.8 grams of this soluble fiber). No. 1 doctor recommended brand. Multiple health benefits. Bulk-forming fibers like psyllium husk may affect how well medicines work. www.pg.com. www.metamucil.com. Questions? 1-800-983-4237. (These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease).