Dietary fiber refers to plant cell wall components that are not digestible by human or other mammalian digestive enzymes. Dietary fiber is essential component of healthy nutrition. Below is the recommended amount of dietary fiber per day.
Table: Dietary Reference Intakes (DRIs): daily recommended intakes of dietary fiber for individuals.
| Age, gender, life stage group | total fiber (grams/day) |
Infants | |
| 0–6 mo | Not determined |
| 7–12 mo | Not determined |
Children | |
| 1–3 years | 19 |
| 4–8 years | 25 |
Males | |
| 9–13 years | 31 |
| 14–18 years | 38 |
| 19–30 years | 38 |
| 31–50 years | 38 |
| 51–70years | 30 |
| > 70 years | 30 |
Females | |
| 9–13 years | 26 |
| 14–18 years | 26 |
| 19–30 years | 25 |
| 31–50 years | 25 |
| 51–70years | 21 |
| > 70 years | 21 |
Pregnancy | |
| 14–18 years | 28 |
| 19–30 years | 28 |
| 31–50 years | 28 |
Lactation | |
| 14–18 years | 29 |
| 19–30 years | 29 |
| 31–50 years | 29 |
Note: Daily Reference Intakes (DRIs) have been developed, since 1996 by the Food and Nutrition Board, Commission on Life Sciences, National Research Council, to replace the Recommended Dietary Allowances (RDAs).
Dietary fiber related links:
Total dietary fiber, soluble fiber, insoluble fiber content of foods
Definitions of dietary fiber food.
List of high fiber food: 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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