Metamucil is the leading fibre supplement brand, and contains 100 percentage natural psyllium husk, which is a great source of both soluble and insoluble fiber. Metamucil can help lower cholesterol levels. Diets low in saturated fat and cholesterol that include 7 grams of soluble fiber from psyllium husk, as in Meta, may lower cholesterol levels; Reductions in cholesterol levels may contribute to reducing the risk of heart disease; Consult a doctor if you are planning to take Metamucil as part of a cholesterol lowering program; Always read the label, use only as directed; If symptoms persist, see your healthcare professional.