The document discusses several topics related to aging including gerontology, the influences on food intake for older adults, biologic changes in aging, clinical applications of medical nutrition therapy, community resources for aging individuals, and professional organizations and resources. Specifically, it notes that gerontology includes biological, physiological, social, and behavioral aspects of aging. It also outlines some common physical changes in older adults like tooth loss that can impact eating. Biologically, aging is associated with losses in organ function and weight by age 70. Community programs provide food assistance and nutrition support to older populations.

1. The Study of
Gerontology
The
 The field of gerontology includes the biologic,
physiologic, sociologic, and behavioral
aspects of the aging process as they play
out in each individual
 Geriatrics: refers to the disease and medical
condition common to older people

2. Influences on Food Intake
of Older Adults
Physical Changes
 Decayed teeth, tooth loss, or poorly fitting
dentures all make chewing and eating both painful
and difficult
 Losses in taste, smell, or sight reduce the
enjoyment of eating and lower appetite

3. Biologic Changes in Aging
Nature of Biologic Changes
By the age of 70:
 The kidneys will have lost about 28% of their
 The liver will have lost approximately 25% of
Weight
 Skeletal muscle will have decreased by almost half as compared
to a young adult
Individuality of the Aging Process
 Lifestyle choices, disease history, and exposure to environmental
hazards or pollution act on genes to determine the rate and
severity of aging changes

4. Clinical Applications – Cont’d
Medical Nutrition Therapy – cont’d
 Older persons with diabetes can often be well
managed on a regular diet if high-sugar items are
restricted
 A regular diet—well-balanced nutritionally—that
offers a wide variety of foods with moderation in
fats and sweets has the best outcomes

5. Community Resources
for the Aging
Food Assistance Programs for older Americans
 Food stamps
 Commodities distribution program
 Elderly Nutrition Program: national program the
greatest impact on the nutritional status older
adults

6. Professional Organizations
and Resources
National Council on the Aging
• Nonprofit organization that promotes research,
training, technical assistance, advocacy and public
policy, program standards, and publications relating
to all aspects of aging.
Community Groups
• Medical societies, nursing organizations, dietetic
associations
• Sponsor classes and programs to help meet the
needs of older adults in their communities.