Malnutrition And Food Aid Programs: A Case Study From Guatemala Page: 30
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composition of the local diets, as well as the soil composition. For
instance, most salt used in underdeveloped countries is not iodized.
The population may demonstrate symptoms of thyroxine deficiency or the
presence of goiter. Therefore, given what is known about the salt being
consumed and the symptoms of thyroxine deficiency, the cause probably
lies in a nutrient deficiency. Thus, a complete survey of the local
food resources (and nutrient value) should provide some insight into
the hormonal state of a population. Though this method is indirect,
it is usually the only viable hormone detection device short of blood
As mentioned earlier in the context of nutrition, it has been
argued by many that the environment is the major influence on the
realization of the genetic potential for growth and the resulting nutri-
tional state. In the broadest sense and as defined earlier, environment
includes everything that is not genetically or uterinely oriented or
controlled for, encompassing not only such physical conditions as tem-
perature and climate, but also the sociocultural system vis-a-vis
such phenomena as socioeconomic status and membership in cultural or
ethnic groups. However, as already argued, environment primarily in-
fluences growth through nutrition or in concert with disease, but not
There is some evidence that climate can directly affect growth.
In Little and Hochner's (1973) study, it appears that in the Eskimo
the rate of growth seems to slow down in response to constant, extreme
cold as a mechanism to preserve and maintain body temperature. The
lowered growth rate liberates nutrients for use in basal metabolism.
Furthermore, D. F. Roberts (1973) found that there appears to be
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Rodeheaver, Daniel Gilbert, 1954-; Bates, Frederick L. & Murphy, Arthur D. Malnutrition And Food Aid Programs: A Case Study From Guatemala, report, May 1982; (digital.library.unt.edu/ark:/67531/metadc84342/m1/43/: accessed September 21, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT College of Public Affairs and Community Service.