What is dietary fiber

Inulin can be hydrolyzed into shorter chain polymers known as fructooligosaccharides. Fructooligosaccharides also can be made by direct enzymatic polymerization of fructose. Other fibers that can be produced by direct enzymatic polymerization of mono- and disaccharide sugars are isomaltooligosaccharides. Another example is the enzymatic conversion of lactose resulting in galacto-oligiosaccharides.

Fiber can also be prepared by polymerization of food carbohydrates in a form that makes the polymer digestion resistant, such as polydextrose prepared from glucose and sorbitol. Thus, current intakes of total fiber fall well below the recommended levels. There are now over 50 different types of fiber containing ingredients to choose from. The availability of these additional sources of fiber makes it possible to increase the amount of fiber in foods containing inherent fiber, such as whole grain baked goods and cereals, as well as to fortify foods that traditionally do not contain any fiber such as fruit juices and yogurt.

What is Dietary Fiber? Frequently Asked Questions. An official website of the United States government. Here's how you know. Nutrient Lists from Standard Reference Legacy This page provides lists of which foods have the most and least content of specific nutrients.

Food Sources of Dietary Fiber. View a list of common foods and drinks and the amount of fiber in a standard portion.

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Show references Kim Y, et al. Dietary fibre intake and mortality from cardiovascular disease and all cancers: A meta-analysis of prospective cohort studies. Archives of Cardiovascular Disease. Duyff RL. Carbs: Sugars, starches, and fiber. New York, N. Nutrition facts label: Dietary fiber. Food and Drug Administration. Accessed Oct. Veronese N, et al. Dietary fiber and health outcomes: An umbrella review of systematic reviews and meta-analyses. American Journal of Clinical Nutrition.

Song M, et al. Fiber intake and survival after colorectal cancer diagnosis. Journal of the American Medical Association: Oncology. Colditz GA. Healthy diet in adults. Dietary reference intakes DRIs : Recommended dietary allowances and adequate intakes, total water and macronutrients.

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