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ORGANIZATIONS
American Academy of Child and Adolescent Psychiatry
(AACAP). 3615 Wisconsin Avenue NW, Washington,
DC 20016-3007. Telephone: (202) 966-7300.
American College of Sports Medicine (ACSM). P. O. Box
1440, Indianapolis, IN 46206-1440. Telephone: (317)
637-9200. Website: http://www.acsm.org.
American Dietetic Association (ADA). 120 South Riverside
Plaza, Suite 2000, Chicago, IL 60606-6995. Telephone:
(800): 877-1600. Website: http://www.eatright.org.
American Society of Health-System Pharmacists. 7272
Wisconsin Avenue, Bethesda, MD 20814. Telephone:
(301) 657-3000. Website: http://www.ashp.org.
Centers for Disease Control and Prevention (CDC). 1600
Clifton Road, Atlanta, GA 30333. Telephone: (404)
639-3311. Website: http://www.cdc.gov/.
Dietitians of Canada/Les die ́te ́tistes du Canada (DC). 480
University Avenue, Suite 604, Toronto, Ontario, Can-
ada M5G 1V2. Telephone: (416) 596-0857. Website:
http://www.dietitians.ca.
Herb Research Foundation (HRF). 4140 15th Street,
Boulder, CO 80304. Telephone: (303) 449-2265. Web-
site: http://www.herbs.org.U. S. Food and Drug Administration (FDA). 5600 Fishers
Lane, Rockville, MD 20857-0001. Telephone: (888)
INFO-FDA. Website: http://www.fda.gov/
default.htm.Rebecca J. Frey, PhDDiverticular disease diet
Definition
A diverticular disease diet is a diet that increases
dietaryfiberto recommended levels.Origins
Diverticulosis is a condition characterized by
small pouches (diverticula) that form and push out-
ward through weak spots in the large intestine. Once
diverticula have formed, there is no way to reverse the
process. When diverticula become infected, the con-
dition is called diverticulitis. Most people with diver-
ticulosis do not experience symptoms. As for
diverticulitis, the most common symptom is abdomi-
nal pain with tenderness around the left side of the
lower abdomen. Fever, nausea, vomiting, chills,
cramping, andconstipationmay occur as well. Diver-
ticular disease is common in industrialized countries,
especially in the United States, Canada, the United
Kingdom, and Australia, and fairly rare in Asia and
Africa. It affects about 50% of Americans by age 60
and nearly all by age 80. A low-fiber diet is believed to
be the main cause of the disease. It was first described
in the United States in the early 1900s, at the time
when processed foods were introduced into the Amer-
ican diet and many of these foods contain refined
flour. Unlike whole-wheat flour, refined flour has no
wheat bran and is accordingly a low-fiber food. The
prevalence of the disease in industrialized countries
seems to confirm the connection of diverticular disease
with a low-fiber diet, since it occurs rarely in Asia or
Africa, where people eat high-fiber, vegetable-based
diets.Description
It has been shown that increasing the amount of
fiber in the diet may reduce symptoms of diverticular
disease. The American Dietetic Association recom-
mends a daily intake of 20–35 grams of fiber. A diver-
ticular disease diet will accordingly seek to increase
dietary fiber to these levels to prevent constipation and
the undue colon pressure that causes diverticula.Diverticular disease diet