9 research outputs found

    A century of trends in adult human height

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    Being taller is associated with enhanced longevity, and higher education and earnings. We reanalysed 1472 population-based studies, with measurement of height on more than 18.6 million participants to estimate mean height for people born between 1896 and 1996 in 200 countries. The largest gain in adult height over the past century has occurred in South Korean women and Iranian men, who became 20.2 cm (95% credible interval 17.5-22.7) and 16.5 cm (13.3-19.7) taller, respectively. In contrast, there was little change in adult height in some sub-Saharan African countries and in South Asia over the century of analysis. The tallest people over these 100 years are men born in the Netherlands in the last quarter of 20th century, whose average heights surpassed 182.5 cm, and the shortest were women born in Guatemala in 1896 (140.3 cm; 135.8-144.8). The height differential between the tallest and shortest populations was 19-20 cm a century ago, and has remained the same for women and increased for men a century later despite substantial changes in the ranking of countries

    Supermarkets and household food acquisition patterns in Vietnam in relation to population demographics and socioeconomic strata: Insights from public data

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    Food environments in Southeast Asia's emerging economies are rapidly evolving, alongside fast-paced socioeconomic and demographic changes. The widespread expansion of supermarkets and parallel restructuring of traditional markets in Vietnam are likely to impact patterns of household food acquisition. Using provincial-level time series data on the abundance of supermarkets and multiyear household survey data, this paper examines the impact of the differential country-wide presence of supermarkets with indices of food quality and quantity acquired by households. We classified provinces into three clusters based on the number of supermarkets: high (HighSM), medium (MedSM), and low (LowSM). We found that a higher number of supermarkets associated with the exceedable Vietnamese recommendation composition of macronutrients at the household-level, but not food quantity. Households with higher per capita food expenditure in HighSM provinces tended to procure foods with higher protein content and lower shares of fat and carbohydrate as compared to similar households in the others provinces. Ethnic minority households in MedSM clusters obtained food with lower carbohydrate and higher fat:protein ratios in comparison to ethnic majority households. Additionally, larger-sized households in HighSM provinces typically bought foods with higher fat shares than smaller-sized households. In contrast, in MedSM and LowSM provinces, larger-sized households typically procured foods with higher protein and lower fat shares. The diversity of foods obtained by households in MedSM and LowSM provinces decreased over time. Within the Midlands and Northern Mountains Area we observed a decrease in the diversity of food acquired among households in the LowSM clusters. This study elucidates potential impacts of the supermarket expansion on household food baskets. Insights from this study can be used to provide evidences for policy recommendation and to design and target interventions aimed at strengthening food environments to address the challenge of the double burden of malnutrition in the country

    Diets, Food Choices and Environmental Impacts across an Urban-Rural Interface in Northern Vietnam

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    Human diets and their associated environmental impacts differ across segments of the population. There is evidence that consumer choices of food intake can also affect the overall environmental impacts of a food system. This paper analyzes the environmental impact of diets and food choices across a rural–urban transect in Northern Vietnam by using mixed survey data from 619 adult respondents. The average greenhouse gas emissions (GHGE) resulting from producing the daily food intake of adults in the urban and peri-urban districts were similar, while the average in the rural district was lower. Although starchy staples contributed the most to energy intake, pork and beef were the largest contributors to GHGE. Metrics of blue water use were higher for diets of males than those of females in all three districts. Interestingly, the difference in mean diet diversity score between urban and rural households was significant, and females’ diets were more diverse than those of males. As expected, urban households were more likely to buy food, while rural households often produced their own foods. Urban households reported prioritizing personal health and the natural content of food and would increase seafood and fruits if their income were to increase. In rural regions, interventions aimed at reducing undernutrition should address improving diet quality without significant increases to diet-related environmental impacts

    Partial food systems baseline assessment at the Vietnam benchmark sites

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    Using data collected from a cross-sectional study in Moc Chau, Dong Anh and Cau Giay districts in Vietnam, this report aims to elucidate specific components of local Vietnamese food systems along a rural to urban transect focusing specifically on (i) diets, (ii) nutrition status (anthropometry), (iii) consumer behavior, (iv) food environment, and (v) food flows
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