Nutrient requirements for optimum health and function of aging physiological systems often are
quite distinct from those required for young ones. Recognition and understanding of the special
nutrition problems of the aged are being intensively researched and tested, especially due to the
increases in the elderly in the general population. In developed countries, economic restrictions and
physical inactivity during aging can significantly reduce food intakes, contributing to nutritional
stresses and needs. Many disease entities and cancers are found with higher frequency in the aged.
Cancer, trauma, or infectious disease can alter intakes or requirements for various nutrients. Thus,
specific foods and nutritional supplementation may be helpful in treatment of aged adults, including
cancer patients.