The fiber added to foods is called “functional fiber.” It has been extracted or isolated with chemicals or some other new fangled scientific method. Their effects are not extensively studied and benefits are not the same as natural soluble and insoluble fiber. Although they may bulk up stool and prevent constipation, they do not have the cholesterol-lowering effects of natural soluble fiber. The American Dietetic Association even states that natural fiber is superior to functional fiber.
The bottom line is look to natural, whole foods for the best sources of fiber. The following foods contain a mix of soluble and insoluble fiber, but they have been categorized by the fiber that they contain more of.
Some great sources of soluble fiber are:
You can find insoluble fiber in:
My favorite form of healthy fiber is steel cut oats with tons of cinnamon and almond milk for breakfast. What is yours?