Let your food be your medicine, and your medicine be your food. ...Hippocrates

Dietary Fiber Requirements (RDA): Daily Reference Intakes (DRIs) for Fiber - RDA for Children, Adult Men and Women

Dietary fiber refers to plant cell wall components that are not digestible by human or other mammalian digestive enzymes.

Dietary fiber requirement can be meet by adopting a diet that incorporates plant origin foods including fruits, vegetables and grains.

It is a common knowledge that daily intake of fiber is a requirement for a healthy lifestyle. Below is the daily Dietary Recommended Allowance (RDA) of dietary fiber for all life stage groups .

Table: Dietary Reference Intakes (DRIs) of fiber: daily recommended intakes of dietary fiber for children and adults.

Age, gender, life stage group RDA Fiber (grams/day)
Infants
0–6 mo Not determined
7–12 mo Not determined
Children
1–3 years 19
4–8 years 25
Adults
Men
9–13 years 31
14–18 years 38
19–30 years 38
31–50 years 38
51–70years 30
> 70 years 30
Women
9–13 years 26
14–18 years 26
19–30 years 25
31–50 years 25
51–70years 21
> 70 years 21
Pregnant Women
14–18 years 28
19–30 years 28
31–50 years 28
Lactating Women
14–18 years 29
19–30 years 29
31–50 years 29

Note: Daily Reference Intakes (DRI) has been developed, since 1996 by the Food and Nutrition Board, Commission on Life Sciences, National Research Council, to replace the Recommended Dietary Allowance (RDA).


Dietary fiber related links:

Total dietary fiber, soluble fiber, insoluble fiber content of foods
Definitions of dietary fiber food.
List of high fiber foods: vegetables and fruits
List of low fiber foods

Dietary Reference Intakes source:

Institute of Medicine. 2005. Dietary Reference Intakes for Energy, Carbohydrate, Fiber, Fat, Fatty Acids, Cholesterol, Protein, and Amino Acids. National Academy Press. (Food and Nutrition Board, Institute of Medicine, National Academies).

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