This dissertation examined the relationship between food security status and cultural congruence and indicators of child growth and development in a rural mountain town in Costa Rica. Results show that children from food secure households are significantly shorter and shorter-legged than their food insecure counterparts. It is theorized that these findings correspond to low quality diets associated with increasing commodification of food systems in rural Costa Rica. Identity-based mechanisms are discussed as potential factors contributing to the increasing commodification of life through the encroachment of the global market economy.

The goal of this dissertation is to discuss relationships between the sociocultural environment and nutritional status outcomes in an urban industrialized city with high rates of poverty. The purpose is to highlight the complex web of factors shaping nutritional status outcomes and move beyond cause and effect approaches to nutrition in an environment where obesity is a central nutritional concern. To accomplish this goal, I examine a range of factors that relate to adolescent nutritional practices and nutritional status outcomes in a sample population of adolescents living in Belfast, Northern Ireland. I discuss connections between social locations such as age, gender, geographic area, and socioeconomic status. I also highlight the range of nutritional status outcomes observed in the sample population, while examining broader social, political, and economic aspects of the lives of adolescents that differentially shape nutrition-related experiences in the city. Finally, I demonstrate that adolescents occupy a complex social location in which autonomy, advice, and influence from sociocultural and political-economic factors shape their diet and exercise practices and nutritional status outcomes in multi-faceted, and at times unexpected, ways. In doing so, I emphasize the benefits of a localized, rather than a globalized approach to nutritional concerns such as obesity.

Economic growth has spurred rapid urbanization in Malaysia and triggered changes in diet, lifestyle, and disease trends. National studies show that a third of Malaysia's population is overweight/obese while household expenditures on dining out grow. In metropolitan Kuala Lumpur (KL), residents navigate concepts of nutrition, body weight, and health as they dine out. Using the biocultural framework, this study examined links between body weight, diet, income, street food consumption, and nutritional knowledge through the perspectives of consumers and vendors. Altogether, 77 participants were recruited for this three-phase research. In the first phase, a survey was administered to 60 participants recruited at street food sites around KL. In the second phase, semi-structured interviews, anthropometry, and diet recalls were conducted on 13 participants. Finally, semi-structured interviews and observations were carried out on four street food vendors at their places of business. Though the findings in this research did not show statistical relationships between body weight status, income, and dining out in KL, telling diet and lifestyle trends emerged. Work mediates the lives of participants, often dictating their diet and capacity to engage in physical activity. Though most female participants work, they still bear the expectations of meal provisioning. These factors encourage the consumption of food away from home, and the commercialization and gentrification of the local street food industry. When viewed critically through the biocultural framework, these observations support the idea that trade liberalization and domestic economic policies have induced demographic changes, household transformations, and dietary adaptations among urban dwellers in KL.

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abstract: Food deserts are the collection of deprived food environments and limit local residents from accessing healthy and affordable food. This dissertation research in San Lorenzo, Paraguay tests if the assumptions about food deserts in the Global North are also relevant to the Global South. In the Global South, the recent growth of supermarkets is transforming local food environments and may worsen residential food access, such as through emerging more food deserts globally. This dissertation research blends the tools, theories, and frameworks from clinical nutrition, public health, and anthropology to identify the form and impact of food deserts in the market city of San Lorenzo, Paraguay. The downtown food retail district and the neighborhood food environment in San Lorenzo were mapped to assess what stores and markets are used by residents. The food stores include a variety of formal (supermarkets) and informal (local corner stores and market vendors) market sources. Food stores were characterized using an adapted version of the Nutrition Environment Measures Survey for Stores (NEMS-S) to measure store food availability, affordability, and quality. A major goal in this dissertation was to identify how and why residents select a type of food store source over another using various ethnographic interviewing techniques. Residential store selection was linked to the NEMS-S measures to establish a connection between the objective quality of the local food environment, residential behaviors in the local food environment, and nutritional health status. Using a sample of 68 households in one neighborhood, modeling suggested the quality of local food environment does effect weight (measure as body mass index), especially for those who have lived longer in poorer food environments. More generally, I find that San Lorenzo is a city-wide food desert, suggesting that research needs to establish more nuanced categories of poor food environments to address how food environments emerge health concerns in the Global South. / Dissertation/Thesis / Ph.D. Social Science and Health 2012