Dietary fibers are found naturally in the plants we eat. They are either soluble (dissolve in water) or insoluble (do not dissolve in water, so they pass through the gastrointestinal tract relatively intact). Both types of fiber are important for health, digestion, and preventing conditions such as heart disease, diabetes, obesity, diverticulitis, and constipation.
Health Benefits
- Fiber may aid in the prevention of heart disease by lowering your cholesterol.
- Fiber helps control blood sugar levels for people with diabetes.
- Adequate amounts of fiber from foods can help prevent constipation and hemorrhoids.
- A high-fiber eating plan is lower in calories and tends to make you feel full faster.
The recommended daily amount of fiber is 25 grams for women and 38 grams for men. After age 50, the daily fiber needs to drop to 21 grams for women and 30 grams for men.
Food Sources
Sources of soluble fiber: oatmeal, oat cereal, lentils, apples, oranges, pears, oat bran, strawberries, nuts, flaxseeds, beans, dried peas, blueberries, cucumbers, and carrots.
Sources of insoluble fiber: whole wheat, whole grains, wheat bran, corn bran, seeds, nuts, barley, couscous, brown rice, bulgur, zucchini, celery, broccoli, cabbage, onions, tomatoes, carrots, cucumbers, green beans, dark leafy vegetables, raisins, grapes, fruit, and root vegetable skins.
Serving Ideas
1. Include 2 cups of fresh fruits and 2 ½ cups of vegetables every day
2. Use whole grain breads and cereals
3. Snack on fruits and vegetables
4. Include vegetables and beans in stews and casseroles
5. Add oats to meatloaf and breads
6. Add fruit to cereal
7. Include a salad with at least one meal per day
Kids 'n Fiber
Getting kids to eat the fiber they need can be a challenge. Join FDA dietitian, nutritionist, and mom Shirley Blakely and a group of hungry Kids in a kitchen for some good-tasting high-fiber foods.
Academy of Nutrition and Dietetics, What is Fiber?
WebMD, Dietary Fiber: Insoluble vs. Soluble
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