There are two types of fiber: soluble fiber and insoluble fiber. Both offer unique benefits and value and can be found in everyday foods like oats (soluble fiber) and whole grains (insoluble fiber).

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 ...