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Increasing fiber should be a gradual process since
majority of fiber products may cause unpleasant bloating, cramps, gas, and other symptoms – especially if they are eaten in large amounts at once. It is best to add one high fiber food at each eating session to judge whether
food causes symptoms or not. For instance, some people who have problems with brown rice may not have problems with apples, oatmeal, whole wheat bread, or other sources of similar fiber.
Many nutrition authorities estimate that 20-35 grams of fiber daily is a desirable intake for
average individual. Note that
amount of nutrients can vary in wheat products since
refining of grains remove part of
seed (e.g., bran, endosperm, and germ). Here are some fiber-rich sources:
1 ounce dry-roasted peanuts: 2.2 g 1/2 cup cooked broccoli: 2.2 g 1 potato with skin: 2.5 g 1 slice whole wheat bread: 2.8 g 1 cup carrots: 3.0 g 1/2 large grapefruit: 3.1 g 1 apple: 3.5 g 1 cup cooked long-grain brown rice: 3.3 g 1 cup cooked instant oatmeal: 3.5 g 3 cups air-popped popcorn: 3.7 g 1 pear: 4.3 g _ cup raisins: 4.5 g 1 cup of whole wheat spaghetti cooked: 5 g 1 cup baked beans: 7.0 g _ cup of chickpeas: 7 g 1 cup boiled lentils: 7.9 g 1 serving bran cereal: 11 g
Here are different sources of fiber and their uses in
body:
CELLULOSE: Fruit legumes, nuts, oat bran, seeds, whole grains, and vegetables. Adds bulk to stool to reduce constipation; oat bran lowers cholesterol; may help control blood sugar; helps weight loss by displacing kcalories.
GUMS: Algae, barley, fruits, legumes, oats, seaweed, seeds, and vegetables. Adds bulk to stool to reduce constipation; may lower blood cholesterol; helps control blood sugar; helps weight loss by displacing kcalories.
HEMICELLULOSE: Fruits, legumes, nuts, oat bran, seeds, whole grains, and vegetables. Adds bulk to stool to reduce constipation; oat bran lowers cholesterol; may help control blood sugar; helps weight loss by displacing kcalories.
LIGNINS: Woody parts of bran, fruit skins, nuts, seeds, whole grains and vegetables. Adds bulk to stool to reduce constipation; may lower blood cholesterol; may help control blood sugar; helps weight loss by displacing kcalories.
MUCILAGES: Plant seeds and secretions. Adds bulk to stool to reduce constipation; may lower blood cholesterol; helps control blood sugar; helps weight loss by displacing kcalories.
PECTINS: Algae, barley, fruits, legumes, oats, seaweed, seeds, and vegetables. Adds bulk to stool to reduce constipation; may lower blood cholesterol; helps control blood sugar; helps weight loss by displacing kcalories.

Brian D. Johnston is the Director of Education and President of the I.A.R.T. fitness certification and education institute. He has written over 12 books and is a contributing author to the Merck Medical Manual. An international lecturer, Mr. Johnston wears many hats in the fitness and health industries, and can be reached at info@ExerciseCertification.com. Visit his site at www.ExerciseCertification.com for more free articles.