Plants have molecules {fiber, nutrition}| that people cannot digest into smaller molecules and/or absorb across intestinal wall into blood.
solubility
Some fiber {insoluble fiber} {crude fiber} does not absorb water. Other fiber {soluble fiber} {dietary fiber} can absorb water.
bond
Cellulose is crude fiber. Lignin, hemicellulose, and pectin are dietary fiber. Cellulose, lignin, hemicellulose, pectin, and inulin have glycosidic bonds that are not the same as for starch and glycogen. Human intestine cannot break them down.
sources
Soluble fiber is in fruit, oats, barley, beans, peas, lentils, peanuts, and some vegetables. Insoluble fiber is in fruits, grains, nuts, and vegetables. Starchy vegetables have low fiber.
functions
Insoluble fiber adds bulk and maintains regular bowel movements. Soluble fiber increases bile-acid secretion. Soluble fiber absorbs water. Soluble fiber affects blood sugar and cholesterol levels.
Physical Sciences>Chemistry>Biochemistry>Carbohydrate>Carbohydrates
5-Chemistry-Biochemistry-Carbohydrate-Carbohydrates
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Date Modified: 2022.0224