Fiber is a substance found in plants. Dietary fiber -- the kind you eat -- is found in fruits, vegetables, and grains. It is an important part of a healthy diet.
Alternative NamesDiet - fiber; Roughage; Bulk
FunctionDietary fiber adds bulk to your diet. Because it makes you feel full faster, it can be helpful in controlling weight. Fiber aids digestion, helps prevent constipation, and is sometimes used for the treatment of diverticulosis, diabetes, and heart disease.
Food SourcesThere are two forms of fiber: soluble and insoluble.
Soluble fiber attracts water and turns to gel during digestion. This slows digestion. Soluble fiber is found in oat bran, barley, nuts, seeds, beans, lentils, peas, and some fruits and vegetables. Soluble fiber has been scientifically proven to lower cholesterol, which can help prevent Heart disease.
Insoluble fiber is found in foods such as wheat bran, vegetables, and whole grains. It appears to speed the passage of foods through the stomach and intestines and adds bulk to the stool.
Side EffectsEating a large amount of fiber in a short period of time can cause intestinal gas (flatulence), bloating, and abdominal cramps. This usually goes away once the natural bacteria in the digestive system get used to the increase in fiber in the diet. Adding fiber gradually to the diet, instead of all at one time, can help reduce gas or diarrhea.
Too much fiber may interfere with the absorption of minerals such as iron, zinc, magnesium, and calcium. However, this effect usually does not cause too much concern because high-fiber foods are typically rich in minerals.
RecommendationsThe average American now eats 10 - 15 grams of fiber per day. The recommendation for older children, adolescents, and adults is 20 - 35 grams per day. Younger children will not be able to eat enough calories to achieve this, but it is a good idea to introduce whole grains, fresh fruits, and other high-fiber foods.
To ensure that you get enough fiber, eat a variety of foods, including:
Add fiber gradually over a period of a few weeks to avoid abdominal discomfort. Water aids the passage of fiber through the digestive system. Drink plenty of fluids (approximately 8 glasses of water or noncaloric fluid a day).
Peeling can reduce the amount of fiber in fruits and vegetables. Eating fiber-containing food is beneficial, whether it is cooked or raw.
ReferencesSlavin JL. Position of the American Dietetic Association: health Implications of Dietary Fiber. J Am Diet Assoc. 2008;108: 1716-1731.
Burleson K. Coronary artery disease. In: Rakel D, ed. Integrative Medicine. 2nd ed. Philadelphia, Pa: WB Saunders; 2007:chap 28.
Park D, Ring M. Peripheral vascular disease. In: Rakel D, ed. Integrative Medicine. 2nd ed. Philadelphia, Pa: WB Saunders; 2007:chap 29.
Underbakke G, McBride P. Dyslipidemias. In: Rakel D, ed. Integrative Medicine. 2nd ed. Philadelphia, Pa: WB Saunders; 2007:chap 40.
Hanaway P. Irritable bowel syndrome. In: Rakel D, ed. Integrative Medicine. 2nd ed. Philadelphia, Pa: WB Saunders; 2007:chap 41.
Fiber is a substance found in plants. Dietary fiber -- the kind you eat -- is found in fruits, vegetables, and grains. It is an important part of a healthy diet.
Alternative NamesDiet - fiber; Roughage; Bulk
FunctionDietary fiber adds bulk to your diet. Because it makes you feel full faster, it can be helpful in controlling weight. Fiber aids digestion, helps prevent constipation, and is sometimes used for the treatment of diverticulosis, diabetes, and heart disease.
Food SourcesThere are two forms of fiber: soluble and insoluble.
Soluble fiber attracts water and turns to gel during digestion. This slows digestion. Soluble fiber is found in oat bran, barley, nuts, seeds, beans, lentils, peas, and some fruits and vegetables. Soluble fiber has been scientifically proven to lower cholesterol, which can help prevent heart disease.
Insoluble fiber is found in foods such as wheat bran, vegetables, and whole grains. It appears to speed the passage of foods through the stomach and intestines and adds bulk to the stool.
Side EffectsEating a large amount of fiber in a short period of time can cause intestinal gas (flatulence), bloating, and abdominal cramps. This usually goes away once the natural bacteria in the digestive system get used to the increase in fiber in the diet. Adding fiber gradually to the diet, instead of all at one time, can help reduce gas or diarrhea.
Too much fiber may interfere with the absorption of minerals such as iron, zinc, magnesium, and calcium. However, this effect usually does not cause too much concern because high-fiber foods are typically rich in minerals.
RecommendationsThe average American now eats 10 - 15 grams of fiber per day. The recommendation for older children, adolescents, and adults is 20 - 35 grams per day. Younger children will not be able to eat enough calories to achieve this, but it is a good idea to introduce whole grains, fresh fruits, and other high-fiber foods.
To ensure that you get enough fiber, eat a variety of foods, including:
Add fiber gradually over a period of a few weeks to avoid abdominal discomfort. Water aids the passage of fiber through the digestive system. Drink plenty of fluids (approximately 8 glasses of water or noncaloric fluid a day).
Peeling can reduce the amount of fiber in fruits and vegetables. Eating fiber-containing food is beneficial, whether it is cooked or raw.
ReferencesSlavin JL. Position of the American Dietetic Association: health Implications of Dietary Fiber. J Am Diet Assoc. 2008;108: 1716-1731.
Burleson K. Coronary artery disease. In: Rakel D, ed. Integrative Medicine. 2nd ed. Philadelphia, Pa: WB Saunders; 2007:chap 28.
Park D, Ring M. Peripheral vascular disease. In: Rakel D, ed. Integrative Medicine. 2nd ed. Philadelphia, Pa: WB Saunders; 2007:chap 29.
Underbakke G, McBride P. Dyslipidemias. In: Rakel D, ed. Integrative Medicine. 2nd ed. Philadelphia, Pa: WB Saunders; 2007:chap 40.
Hanaway P. Irritable bowel syndrome. In: Rakel D, ed. Integrative Medicine. 2nd ed. Philadelphia, Pa: WB Saunders; 2007:chap 41.
Reviewed ByReview Date: 07/22/2010
Linda J. Vorvick, MD, Medical Director, MEDEX Northwest Division of Physician Assistant Studies, University of Washington, School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.
1. Step index fiber is of two types viz; mono mode fiber and multi mode fiber. Graded index fiber is of only of one type that is multi mode fiber. 2. The refractive index of the core of the step index fiber is constant through out the core. The refractive index of the core of the graded index fiber is maximum at the center of the core and then it decreases towards core-cladding interface. 3. Number of modes for step index fiber N = V2/2, where V is cut off frequency or normalized frequency or V- number Number of modes for graded index fiber is N = V2/ 4. 4. V number can be less that 2.405 or more that 2.405 for step index fiber V number is always more than 2.405 for graded index fiber. 5. Step Index Fiber is a fiber in which the core is of a uniform refractive index and there is a sharp decrease in the index of refraction at the cladding. Graded Index Fiber is a type of fiber where the refractive index of the core is lower toward the outside of the fiber. It bends the rays inward and also allows them to travel faster in the lower index of refraction region. This type of fiber provides high bandwidth capabilities.
I'm not which Fiber 1 commercial you are referring to, but sometimes I swear it is Robert De Niro
Nylon and Lycra.
If the fiber tract connects the cerebral cortex and the lower brain or spinal cord then it is referred to as a projection tract.
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Fiber
B-fiber are DULL PAIN!
a natural fiber
Synthetic Fiber
synthetic fiber is a man made fiber & cellulosic fiber is a natural fiber. synthetic is a stronger than natural fiber. synthethic is used in tyer,airoplain etc.
They do have fiber.
it is a fiber
There are two types of fiber, soluble and insoluble fiber. Soluble fiber dissolves in water, like oatmeal. Insoluble fiber does not dissolve, but is important to bulk up and clean the colon.
There is no fiber in steak. There is mostly fiber in plant products.
yes polythene is a synthetic fiber
Fiber.
Yes