It's also added to some processed foods like cereal and bread. There are two types of fiber -- "soluble," if it dissolves in water, and "insoluble," if it doesn't. Soluble fiber absorbs water and ...

There are two types of fiber: soluble and insoluble. Soluble fiber dissolves in water and forms a gel-like substance that slows down digestion. It can help lower cholesterol and regulate blood ...