Dietary fiber has two main components, insoluble and soluble. Both types have advantages in the diet. Insoluble fibers do not dissolve in water, while soluble fibers dissolve or are broken down in the body. Insoluble fibers provide more bulk to stool size, and also may play a role in reducing the risk for certain types of cancer. Soluble fibers have been proven to have a lowering effect on blood cholesterol levels.

needs: 21-26 g for women, 30-38 g for men. Fiber requiements depend on calorie needs so about 1 gram of fiber per 100 calories is recommended.
foods in:

• Insoluble: wheat bran, brown rice
• Soluble: apples, bananas, oranges, carrots, oats, and beans

One of the elongated thick-walled cells that give strength and support to plant tissue.

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