Multiple Fibre Vegetable Capsules, offering a blend of soluble and insoluble fibres, is one of Solgar's premium-quality digestive support products. A synergistic blend of nature's best soluble and insoluble plant fibres. Fibres include components of plant cell walls such as cellulose, lignins and gums. They are broadly categorised as being either soluble or insoluble and are essential for our health.