Diets low in saturated fat and cholesterol that include 7 grams of soluble fiber per day from psyllium husk, as in Metamucil, may reduce the risk of heart disease by lowering cholesterol.* One adult serving of Metamucil Powder has 2.4 grams of this soluble fiber. Consult a doctor if you are considering use of this product as part of a cholesterol-lowering* program.