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Dietary fiber: Essential for a healthy diet
How much fiber do you need?
How much fiber do you need each day? The National Academy of Sciences' Institute of Medicine, which provides science-based advice on matters of medicine and health, gives the following daily recommendations for adults:
| Age 50 and younger | Age 51 and older | |
|---|---|---|
| Men | 38 grams | 30 grams |
| Women | 25 grams | 21 grams |
Your best fiber choices
If you aren't getting enough fiber each day, you may need to boost your intake. Good choices include:
- Grains and whole-grain products
- Fruits
- Vegetables
- Beans, peas and other legumes
- Nuts and seeds
Refined or processed foods — such as canned fruits and vegetables and pulp-free juice, white bread and pasta, and non-whole-grain cereals — are lower in fiber content. The grain-refining process removes the outer coat (bran) from the grain, which lowers its fiber content. Similarly, removing the skin from fruits and vegetables decreases their fiber content.
Whole foods rather than fiber supplements are generally better. Fiber supplements — such as Metamucil, Citrucel and FiberCon — don't provide the vitamins, minerals and other beneficial nutrients that high-fiber foods do. However, some people may still need a fiber supplement if dietary changes aren't sufficient, or if they have certain medical conditions such as constipation, diarrhea or irritable bowel syndrome. Always check with your doctor if you feel you need to take fiber supplements.
Tips for fitting in fiber
Need ideas for high-fiber meals and snacks? Try these suggestions:
- Jump-start your day. For breakfast choose a high-fiber breakfast cereal — 5 or more grams of fiber a serving. Opt for cereals with "bran" or "fiber" in the name. Or add a few tablespoons of unprocessed wheat bran to your favorite cereal.
- Switch to whole grains. Look for breads that list whole wheat, whole-wheat flour or another whole grain as the first ingredient on the label. Look for a brand with at least 2 grams of dietary fiber a serving. Experiment with brown rice, wild rice, barley, whole-wheat pasta and bulgur.
- Bulk up your baked goods. Substitute whole-grain flour for half or all of the white flour when baking. Whole-grain flour is heavier than white flour. In yeast breads, use a bit more yeast or let the dough rise longer. When using baking powder, increase it by 1 teaspoon for every 3 cups of whole-grain flour. Try adding crushed bran cereal or unprocessed wheat bran to muffins, cakes and cookies.
- Mix it up. Add pre-cut fresh or frozen vegetables to soups and sauces. For example, mix chopped frozen broccoli into prepared spaghetti sauce or toss fresh baby carrots into stews.
- Get a leg up with legumes. Eat more beans, peas and lentils. Add kidney beans to canned soup or a green salad. Or make nachos with refried black beans, lots of fresh veggies, whole-wheat tortilla chips and salsa.
- Eat fruit at every meal. Apples, bananas, oranges, pears and berries are good sources of fiber.
- Make snacks count. Fresh and dried fruit, raw vegetables, and low-fat popcorn and whole-grain crackers are all good choices. An occasional handful of nuts is also a healthy, high-fiber snack.
High-fiber foods are good for your health. But adding too much fiber too quickly can promote intestinal gas, abdominal bloating and cramping. Increase fiber in your diet gradually over a period of a few weeks. This allows the natural bacteria in your digestive system to adjust to the change. Also, drink plenty of water. Fiber works best when it absorbs water, making your stool soft and bulky.
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- Park Y, et al. Dietary fiber intake and risk of colorectal cancer. JAMA. 2005;294:2849.
- Dietary Reference Intakes: Macronutrients. National Academy of Sciences, Institute of Medicine, Food and Nutrition Board. http://www.iom.edu/Global/News%20Announcements/~/media/C5CD2DD7840544979A549EC47E56A02B.ashx. Accessed Oct. 29, 2009.
- Marshall JR. Nutrition and colon cancer prevention. Current Opinion in Clinical Nutrition & Metabolic Care. 2009;12:539.
- Duyff RL. American Dietetic Association Complete Food and Nutrition Guide. 3rd ed. Hoboken, N.J.: John Wiley & Sons, 2006:132.
- Slavin JL. Position of the American Dietetic Association: Health implications of dietary fiber. Journal of the American Dietetic Association. 2008;108:1716.
- Zeratsky KA (expert opinion). Mayo Clinic, Rochester, Minn. Oct. 29, 2009.
- Schatzkin A, et al. Dietary fiber and whole-grain consumption in relation to colorectal cancer in the NIH-AARP Diet and Health Study. American of the Journal Clinical Nutrition. 2007;85:1353.