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Invited Commentary
February 14, 2011

Do the Health Benefits of Dietary Fiber Extend Beyond Cardiovascular Disease?Comment on “Dietary Fiber Intake and Mortality in the NIH-AARP Diet and Health Study”

Author Affiliations

Author Affiliations: Departments of Nutrition (Drs de Koning and Hu) and Epidemiology (Dr Hu), Harvard School of Public Health Channing Laboratory, and Department of Medicine, Brigham and Women's Hospital and Harvard Medical School (Dr Hu), Boston, Massachusetts.

Arch Intern Med. 2011;171(12):1069-1070. doi:10.1001/archinternmed.2011.19

Dietary fiber is important in digestion, and its relationship with chronic disease has been a topic of great interest for many years. Fiber consists of undigestible plant carbohydrates in both soluble and insoluble forms.1 Soluble fiber (eg, fruit pectin) dissolves in water to form a gel, whereas insoluble fiber (eg, cellulose from wheat bran) does not.

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