Getting the food list 'right': an approach for the development of nutrition-relevant food lists for household consumption and expenditure surveys.

OBJECTIVE: The present paper aimed to demonstrate how 24 h dietary recall data can be used to generate a nutrition-relevant food list for household consumption and expenditure surveys (HCES) using contribution analysis and stepwise regression. DESIGN: The analysis used data from the 2011/12 Bangladesh Integrated Household Survey (BIHS), which is nationally representative of rural Bangladesh. A total of 325 primary sampling units (PSU=village) were surveyed through a two-stage stratified sampling approach. The household food consumption module used for the analysis consisted of a 24 h open dietary recall in which the female member in charge of preparing and serving food was asked about foods and quantities consumed by the whole household. SETTING: Rural Bangladesh.ParticipantsA total of 6500 households. RESULTS: The original 24 h open dietary recall data in the BIHS were comprised of 288 individual foods that were grouped into ninety-four similar food groups. Contribution analysis and stepwise regression were based on nutrients of public health interest in Bangladesh (energy, protein, fat, Fe, Zn, vitamin A). These steps revealed that a list of fifty-nine food items captures approximately 90 % of the total intake and up to 90 % of the between-person variation for the key nutrients based on the diets of the population. CONCLUSIONS: The study illustrates how 24 h open dietary recall data can be used to generate a country-specific nutrition-relevant food list that could be integrated into an HCES consumption module to enable more accurate and comprehensive household-level food and nutrient analyses.

Comparative performance of NEMS-S Surveys in latino food stores in the greater boston area

The dietary practices of diverse population groups, associated with the nutritional transition and the rapid demographic changes occurring globally require more attention to the food preferences of migrant groups such as Latinos living in the United States United States of America (US). This work aimed at the performance of an instrument utilized to measure availability of healthy food options in Latino stores located in the town of Somerville, state of Massachusetts. The methodology included the application of two versions: Guatemalan and US of the Nutrition Environment Measures Survey for Stores (NEMS-S), for the assessment of the availability of healthy food options in three Latino stores. Data were analyzed using descriptive statistics. The results indicated that foods sold in Latino stores were identified more successfully with the Guatemalan-NEMS-S than with the US NEMS-S. There was a general lack of healthy food options found when using the US survey, as well as a relatively narrow selection of fruits and vegetables. As conclusion, it was found that the US NEMS-S tended to identify a lower number of healthy food options, as compared to a larger number of similar options when a culturally-appropriate survey was used. These findings illustrate a manner in which a culture-specific instrument perform more appropriately than similar instruments adapted for other population groups, especially when the results are to be applied to support development of healthy food policies(AU)

Las prácticas alimentarias de diversos grupos de población, asociadas a la transición nutricional, y a los rápidos cambios demográficos que se producen a nivel mundial, exigen más atención a las preferencias alimentarias de grupos migrantes, como por ejemplo Latinos en los Estados Unidos de Norteamérica (EU). Este trabajo documenta los resultados de aplicar un instrumento para medir disponibilidad de alimentos saludables en tres tiendas latinas ubicadas en la ciudad de Somerville, estado de Massachusetts. La metodología utilizada incluyó la aplicación de dos versiones: guatemalteca y EU de la Encuesta para Medir Ambiente Nutricional en Tiendas (NEMS-S, siglas en inglés), para evaluar la disponibilidad de alimentos saludables. Los datos se analizaron con estadísticas descriptivas. Los resultados indicaron que los alimentos vendidos en las tiendas latinas fueron identificados con más acierto con el NEMS-S guatemalteco que con el NEMS-S de EU. Con este último instrumento, se obtuvo un número menor de opciones saludables y una selección limitada de frutas y de vegetales. Como conclusión, se encontró que el NEMS-S de EU identificaba un menor número de opciones de alimentos saludables, en comparación con el instrumento culturalmente apropiado. Estos hallazgos ilustran la importancia de utilizar instrumentos específicos para determinar disponibilidad de alimentos saludables, especialmente cuando los resultados se utilicen para apoyar el desarrollo de políticas alimentarias(AU)

Vitamin D status among indigenous Mayan (Kekchi) and Afro-Caribe (Garifuna) adolescents from Guatemala: a comparative description between two ethnic groups residing on the Rio Dulce at the Caribbean coast in Izabal Province, Guatemala.

OBJECTIVE: To assess vitamin D status and the influence of risk factors such as skin pigmentation and time spent outdoors on hypovitaminosis D among Guatemalan Kekchi and Garifuna adolescents. DESIGN: Cross-sectional study, with convenient sampling design. Blood samples, anthropometric and behavioural data were all collected during the dry season. Serum 25-hydroxyvitamin D (25(OH)D) concentrations were measured by RIA. SETTING: Communities of Rio Dulce and Livingston, Izabal Province, Caribbean coast of Guatemala, with latitude and longitude of 15°49'N and 88°45'W for Livingston and 15°46'N and 88°49'W for Rio Dulce, respectively. SUBJECTS: Eighty-six adolescents, divided evenly by sex and ethnicity, with mean age of 14 years. RESULTS: Mean (sd) 25(OH)D value was 27·8 (7·2) ng/ml for the total group, with 25·8 (5·9) and 29·8 (7·9) ng/ml, respectively, in Kekchis and Garifunas (P=0·01). Use of vitamin D supplementation, clothing practices and sun protection were not statistically different between groups. Skin area exposed on the day of data collection ranged from 20·0 % minimum to 49·4 % maximum, with mean (sd) exposure of 32·0 (8.5) %. With univariate regression analysis, age (P=0·034), sex (P=0·044), ethnicity (P=0·010), time spent outdoors (P=0·006) and percentage skin area exposed (P=0·001) were predictive. However, multivariate analysis indicated that only sex (P=0·034) and percentage skin area exposed (P=0·044) remained as predictors of 25(OH)D. CONCLUSIONS: Despite residing in an optimal geographic location for sunlight exposure, nearly 65 % of study adolescents were either insufficient or deficient in vitamin D. Correction and long-term prevention of this nutritional problem may be instrumental in avoiding adverse effects in adulthood attributed to low 25(OH)D during adolescence.

Sodium Intake, Blood Pressure, and Dietary Sources of Sodium in an Adult South Indian Population.

BACKGROUND: The association between prevalence of hypertension and its relationship with dietary sodium intake has never been published from large epidemiological studies in the South Indian population before. OBJECTIVES: To assess sodium intake and its association with blood pressure, and major dietary sources of sodium in an adult population in southeastern India. METHODS: This study included a representative population-based sample of 8080 individuals (57% women) >20 years of age. Individuals with previous history of hypertension and outliers for sodium intake were excluded, resulting in a sample size of 6876, with 4269 from semi-urban/urban and 2607 from rural areas. Baseline measurements included evaluation of systolic (SBP) and diastolic (DBP) blood pressures, anthropometric, sociodemographic, and psychosocial parameters. Based on 24-hour recall, we calculated total daily sodium intake and the percentage contributed by each food group to the total sodium intake. Participants were assigned based on quintiles of dietary sodium intake. Mixed-effects multivariable linear regression models assessed the association of SBP and DBP with sodium intake. FINDINGS: Men had higher mean sodium intake (4.1 ± 2 versus 3.2 ± 1.7 g/day; P < 0.01) with higher mean SBP and DBP (123/77 versus 117/74 mm Hg; P < 0.01), and higher prevalence of hypertension (22.2% versus 12.9%; P < 0.01) compared with women. Mean dietary sodium intake was significantly higher in the hypertensive men (4.2 ± 2 g/day) and women (3.2 ± 1.7 g/day) compared with normotensive men (4 ± 2 g/day), and women (3.2 ± 1.7 g/day; P < 0.05). Significant (P < 0.01) increases in SBP and DBP were evident in men, but not women with increasing quintile of sodium intake. After multivariable adjustments, sodium intake was independently associated with SBP, but not DBP, in both sexes. The predominant source of dietary sodium in both semi-urban/urban and rural populations was from homemade foods where salt is part of the traditional recipe. CONCLUSION: In a South Indian population, the dietary intake of sodium was higher than recommendations by major dietary guidelines and was an independent predictor of SBP.

The Nutritional Contribution of Foods and Beverages Provided by Government-Sponsored Day Care Centers in Guatemala.

BACKGROUND: Meals served at government-run day care centers must be nutritionally adequate to ensure good health and proper development of preschool-aged children. They can provide a controlled opportunity to complement the daily diet of children in vulnerable populations. OBJECTIVE: To determine the nutrient adequacy and leading food sources of nutrients provided by the diet served in government-sponsored day care centers. METHODS: Estimated daily energy and nutrient intakes of a theoretical 40-day day care center menu were calculated, and the nutrient adequacy was assessed. Nutrient densities and critical nutrient densities of the menu were computed to identify nutrient inadequacies. Furthermore, main sources of nutrients were identified, and energy and nutrient distributions were examined by meal time. RESULTS: The menu provides approximately 90% of daily energy requirement and more than 100% of Recommended Nutrient Intakes (RNIs), with the exception of vitamin D and calcium. Sugar was the first leading source of energy, whereas milk was the first leading contributor of vitamin D. CONCLUSION: Within an environment of budgetary constraints, the Guatemalan government developed and advocated an exemplary menu offering for children in the vulnerable preschool period. We have demonstrated that, if prepared and served as planned, the items from the official, standard menu would supply most of the nutrients needed. High vitamin A intake related to the mandated national fortification program is a potential problem. From the analysis, it was found that vitamin D emerges as the most prominent candidate for a problem nutrient of deficient intake.

Assessing alternative industrial fortification portfolios: a Bangladesh case study.

BACKGROUND: Approximately 1.2 million disability-adjusted life years (DALYs) are lost annually in Bangladesh due to deficiencies of vitamin A, iron, and zinc. OBJECTIVE: To provide evidence on the coverage, costs, and cost-effectiveness of alternative fortification interventions to inform nutrition policy-making in Bangladesh. METHODS: Combining the 2005 Bangladesh Household Income and Expenditure Survey with a Bangladesh food composition table, apparent intakes of energy, vitamin A, iron, and zinc, and the coverage and apparent consumption levels of fortifiable vegetable oil and wheat flour are estimated. Assuming that fortification levels are those established in official regulations, the costs and cost-effectiveness of the two vehicles are assessed independently and as a two-vehicle portfolio. RESULTS: Vegetable oil has a coverage rate of 76% and is estimated to reduce the prevalence of inadequate vitamin A intake from 83% to 64%. The coverage of wheat flour is high (65%), but the small quantities consumed result in small reductions in the prevalence of inadequate intakes: 1.5 percentage points for iron, less than 1 for zinc, and 2 for vitamin A, while reducing average Estimated Average Requirement (EAR) gaps by 8%, 9%, and 15%, respectively. The most cost-effective 10-micronutrient wheat flour formulation costs US $1.91 million annually, saving 129,212 DALYs at a unit cost of US $14.75. Fortifying vegetable oil would cost US $1.27 million annually, saving 406,877 DALYs at an average cost of US $3.25. Sensitivity analyses explore various permutations of the wheat flour formulation. Divisional variations in coverage, cost, and impact are examined. CONCLUSIONS: Vegetable oil fortification is the most cost-effective of the three portfolios analyzed, but all three are very cost-effective options for Bangladesh.

Estimating the impact of vitamin A-fortified vegetable oil in Bangladesh in the absence of dietary assessment data.

OBJECTIVE: Vitamin A deficiency is a serious health problem in Bangladesh. The 2011-12 Bangladesh Micronutrient Survey found 76·8% of children of pre-school age were vitamin A deficient. In the absence of nationally representative, individual dietary assessment data, we use an alternative--household income and expenditure survey data--to estimate the potential impact of the introduction of vitamin A-fortified vegetable oil in Bangladesh. DESIGN: Items in the household income and expenditure survey were matched to food composition tables to estimate households' usual vitamin A intakes. Then, assuming (i) the intra-household distribution of food is in direct proportion to household members' share of the household's total adult male consumption equivalents, (ii) all vegetable oil that is made from other-than mustard seed and that is purchased is fortifiable and (iii) oil fortification standards are implemented, we modelled the additional vitamin A intake due to the new fortification initiative. SETTING: Nationwide in Bangladesh. SUBJECTS: A weighted sample of 12,240 households comprised of 55,580 individuals. RESULTS: Ninety-nine per cent of the Bangladesh population consumes vegetable oil. The quantities consumed are sufficiently large and, varying little by socio-economic status, are able to provide an important, large-scale impact. At full implementation, vegetable oil fortification will reduce the number of persons with inadequate vitamin A intake from 115 million to 86 million and decrease the prevalence of inadequate vitamin A intake from 80% to 60%. CONCLUSIONS: Vegetable oil is an ideal fortification vehicle in Bangladesh. Its fortification with vitamin A is an important public health intervention.

¿Se considera la alimentación saludable parte de la seguridad alimentaria y nutricional?: perspectivas desde comunidades pobres de El Salvador / Is healthy eating part of food and nutrition security?: Perspectives from poor communities in El Salvador

Antecedentes: la definición de la seguridad alimentaria y nutricional (SAN) incluye la importancia de la calidad nutricional de los alimentos además de la suficiencia. Sin embargo, aún existe un énfasis en el aspecto de la suficiencia, incluso en contextos con crecientes problemas relacionados con sobrealimentación. Objetivos: describir estrategias locales para el manejo de la alimentación en la escasez de recursos; documentar perspectivas sobre la SAN en comunidades vulnerables; evaluar enlaces conceptuales entre la SAN y la alimentación saludable en estas comunidades, y comparar las definiciones locales acerca de la SAN con la política nacional sobre la SAN. Materiales y métodos: investigación cualitativa utilizando grupos focales, entrevistas informales y observaciones no estructuradas, seguida por codificación y análisis. Resultados y conclusiones: los participantes definieron la SAN como ''asegurar'' los alimentos (disponibilidad e inocuidad, incluyendo modo de producción y procesamiento de alimentos). Hubo desacuerdo entre los participantes sobre la conexión entre la SAN y la alimentación saludable. Se encontraron áreas de concordancia y desacuerdo entre la percepción local sobre la SAN y la política nacional. Es necesario entender cómo las concepciones locales evolucionan dado cambios en los alimentos disponibles localmente y la capacidad adquisitiva de poblaciones vulnerables.

Background: the definition of food and nutrition security (FNS) includes the importance of the nutritional quality of foods other than sufficiency. However, there is still an emphasis on sufficiency, even in settings with increasing problems relating to overeating. Objectives: (1) describe local coping strategies in times of resource scarcity; (2) document perspectives related to FNS in vulnerable communities; (3) evaluate the conceptual links between FNS and healthy eating in these communities and (4) compare local FNS definitions to the national discourse found in the FNS national policy. Materials and methods: qualitative research using focus groups, informal interviews and unstructured observations, followed by analytic coding. Results and conclusions: participants defined FNS as ''securing'' the food (availability and food safety, including concerns over food production and processing methods). There was disagreement among the participants regarding the connection between FNS and healthy eating. Areas of agreement and disagreement between the local discourse on national politics and SAN were found. More information is needed on how local conceptions evolve in the light of changes in the types of food available and accessible locally for vulnerable populations.

Maternal health and health-seeking behaviors among indigenous Mam mothers from Quetzaltenango, Guatemala.

OBJECTIVE: To obtain background information about maternal health and health-seeking behaviors among indigenous mothers living in rural Mam-Mayan communities of Quetzaltenango, Guatemala. METHODS: A cross-sectional analysis of 100 pregnant and breastfeeding women in four communities was performed to determine prevalence and determinants of service utilization. RESULTS: Extreme poverty, poor education, and poor access to basic resources were prevalent. Out of 100 women 14-41 years old, 33% did not use the formal health care sector for antenatal care; the majority consulted a traditional birth attendant. Only 13% delivered in a hospital. Lower socioeconomic status, lack of fluency in Spanish, and no ownership of a motorized vehicle were associated with the highest likelihood of poor utilization of services. CONCLUSIONS: A variety of factors affect utilization of maternal health services by indigenous women in rural Quetzaltenango. These include socioeconomic disparities, ethnic and linguistic differences, and poor access to basic resources. The current reproductive needs of women should be addressed to improve their health and increase their chance of having healthy children.

Maternal health and health-seeking behaviors among indigenous Mam mothers from Quetzaltenango, Guatemala / Salud materna y comportamientos relacionados con la búsqueda de asistencia sanitaria en madres indígenas mames del departamento de Quetzaltenango, Guatemala

OBJECTIVE: To obtain background information about maternal health and health-seeking behaviors among indigenous mothers living in rural Mam-Mayan communities of Quetzaltenango, Guatemala. METHODS: A cross-sectional analysis of 100 pregnant and breastfeeding women in four communities was performed to determine prevalence and determinants of service utilization. RESULTS: Extreme poverty, poor education, and poor access to basic resources were prevalent. Out of 100 women 14-41 years old, 33% did not use the formal health care sector for antenatal care; the majority consulted a traditional birth attendant. Only 13% delivered in a hospital. Lower socioeconomic status, lack of fluency in Spanish, and no ownership of a motorized vehicle were associated with the highest likelihood of poor utilization of services. CONCLUSIONS: A variety of factors affect utilization of maternal health services by indigenous women in rural Quetzaltenango. These include socioeconomic disparities, ethnic and linguistic differences, and poor access to basic resources. The current reproductive needs of women should be addressed to improve their health and increase their chance of having healthy children.

OBJETIVO: Obtener información básica acerca de la salud materna y los comportamientos relacionados con la búsqueda de asistencia sanitaria en madres indígenas residentes en comunidades rurales de la etnia maya mam en Quetzaltenango, Guatemala. MÉTODOS: Se llevó a cabo un análisis transversal de 100 mujeres pertenecientes a cuatro comunidades, embarazadas o en período de lactancia, con objeto de determinar la prevalencia y los determinantes de la utilización de servicios. RESULTADOS: La pobreza extrema, la escasa formación y el acceso limitado a los recursos básicos fueron prevalentes. De las 100 mujeres, de 14 a 41 años de edad, 33% no acudieron al sector formal de atención de salud en busca de asistencia prenatal; la mayor parte de ellas consultaron a una partera tradicional. Solo 12% dieron a luz en un hospital. El nivel socioeconómico inferior, la falta de fluidez en español y la carencia de un vehículo motorizado se asociaron con la mayor probabilidad de escasa utilización de los servicios. CONCLUSIONES: Diversos factores afectan a la utilización de los servicios de salud materna por parte de las mujeres indígenas del Quetzaltenango rural. Entre estos factores figuran las desigualdades socioeconómicas, las diferencias lingüísticas y étnicas, y el acceso limitado a los recursos básicos. Es preciso atender a las necesidades reproductivas actuales de las mujeres para mejorar su salud y aumentar sus probabilidades de tener hijos sanos.

Household-level dietary quality indicator for countries in nutritional transition: application to vulnerable communities in El Salvador.

OBJECTIVE: To develop a household-level diet quality indicator (HDQI) using the Salvadorian dietary guidelines to assess the dietary quality of households in vulnerable communities in El Salvador. DESIGN: The Salvadorian dietary guidelines were reviewed and eighteen HDQI components were identified (nine foods and nine nutrients). The components were evaluated using a proportional scoring system from 0 to 1, penalizing over- and under-consumption, where appropriate. The HDQI was validated in consultations with experts in El Salvador and by statistical analyses of the study sample data. Dietary variety and energy, nutrient and food intakes were compared among households above and below the median HDQI score using Student's t test. SETTING: Vulnerable, border communities in El Salvador. SUBJECTS: Households (n 140) provided food consumption information using an FFQ and sociodemographic data. RESULTS: The mean HDQI score was 63·5, ranging from 43·6 to 90·0. The indicator showed a positive, significant association with the dietary variety components. The statistical associations of the indicator with the energy and nutrient components were as expected. CONCLUSIONS: Based on the indicator's demonstrated face validity and the results of the expert consultations, the indicator is suggested as a good measure of diet quality for households in El Salvador.

Perceived access and actual intake of healthy diets among households in vulnerable Salvadoran communities.

OBJECTIVE: This study aimed to examine the dietary intake of Salvadoran households according to perceived access to healthy meals (PAHD), and to identify household characteristics associated with diet quality and PAHD. METHODS: Secondary data analysis with a sample of 139 Salvadoran households from resource-poor communities in El Salvador. Chi-square tests and ANOVA were used to assess differences in dietary intake across households classified according to PAHD. RESULTS: High-PAHD households had higher women's education, household food security levels, overall diet quality, and variety, and higher intakes of animal products, fats, cholesterol, vitamin C, and sodium (P < .05). Diet quality was not associated with the household characteristics studied. CONCLUSIONS AND IMPLICATIONS: Overall diet quality was associated with higher levels of PAHD, but some differences in intakes were not as expected, such as higher intakes in foods and nutrients associated with low-quality diets, among high PAHD households.

Dietary intake and severe early childhood caries in low-income, young children.

Evidence suggests that risk for early childhood caries (ECCs), the most common chronic infectious disease in childhood, is increased by specific eating behaviors. To identify whether consumption of added sugars, sugar-sweetened beverages (SSBs), and 100% fruit juice, as well as eating frequency, are associated with severe ECCs, cross-sectional data collected from a sample of low-income, racially diverse children aged 2 to 6 years were used. Four hundred fifty-four children with severe ECCs and 429 caries-free children were recruited in 2004-2008 from three pediatric dental clinics in Columbus, OH; Cincinnati, OH; and Washington, DC. Dietary data were obtained from one parent-completed 24-hour recall and an interviewer-administered food frequency questionnaire (FFQ). Multivariate logistic regression analyses were conducted to assess associations between severe ECCs and dietary variables. On average, children with severe ECCs consumed 3.2-4.8 fl oz more SSBs (24-hour recall=1.80 vs 1.17; P< 0.001; FFQ=0.82 vs 0.39; P<0.001) and reported significantly more daily eating occasions (5.26 vs 4.72; P<0.0001) than caries-free children. After controlling for age, sex, race/ethnicity, maternal education, recruitment site, and family size, children with the highest SSB intake were 2.0 to 4.6 times more likely to have severe ECCs compared with those with the lowest intake, depending on dietary assessment method (24-hour recall odds ratio 2.02, 95% CI 1.33 to 3.06; FFQ odds ratio 4.63, 95% CI 2.86 to 7.49). The relationship between eating frequency and severe ECC status was no longer significant in multivariate analyses. Specific dietary guidance for parents of young children, particularly regarding SSB consumption, could help reduce severe ECC prevalence.

Development of a pediatric cariogenicity index.

OBJECTIVES: This study was designed to develop food and liquid cariogenicity indices and to preliminarily test their utility using dietary data from a study of children with and without severe early childhood caries (S-ECC), defined as 3 + smooth surface carious lesions, including at least one pulpally involved tooth. METHODS: Data were collected in a diverse cohort of low-income preschool-aged children made up of 454 children with S-ECC and 429 caries-free children who presented for care at pediatric dental clinics in Washington, DC, Columbus, OH, and Cincinnati, OH. The cariogenicity indices were used to score dietary data from a Food Frequency Questionnaire (FFQ) and a 24-hour recall (24HR). RESULTS: There were no statistically significant differences in mean food cariogenicity scores between groups. The liquid cariogenicity score was higher in the S-ECC group as compared with caries-free children (24HR: 5.28 versus 4.66, respectively, P < 0.001; FFQ: 5.03 versus 4.38, P < 0.001). The food cariogenicity score did not discriminate between those with and without S-ECC, while the liquid cariogenicity score did differentiate between the two groups (24HR: OR: 1.2; 95 percent CI: 1.1, 1.3; FFQ: 1.7; 95 percent CI 1.4, 2.0). The liquid cariogenicity score was also associated with number of carious lesions. CONCLUSIONS: The liquid cariogenicity index has potential in research and clinical settings to provide a liquid cariogenicity score and help quickly identify modifiable risk factors within a child's diet. Further research is needed to test its utility in clinical and public health settings.

Food insecurity among Cambodian refugee women two decades post resettlement.

Resettled refugees have high rates of chronic disease, which may be partially due to persistent food insecurity. This study describes food experiences on arrival in the U.S. and current food security status and examines characteristics related to food insecurity in a well-established refugee community. Focus groups and a survey assessed food security status and personal characteristics of Cambodian women in Lowell, MA, USA. Multivariate logistic regression was used to examine relationships with food insecurity. Current rates of food insecurity are high. In multivariate models, food insecurity was positively associated with being depressed and being widowed, and negatively associated with higher income and acculturation. Early arrivers (1980s) had difficulty in the U.S. food system on arrival, while later arrivers (1990s-2000s) did not. Refugee agencies should consider strategically devoting resources to ensure successful early transition to the U.S. food environment and long-term food security of refugees.

Identifying zambia's industrial fortification options: toward overcoming the food and nutrition information gap-induced impasse.

BACKGROUND: Zambia was a pioneer when it started fortifying sugar with vitamin A in 1998. Micronutrient deficiencies-especially among young children-have changed little over the past decade. In 2008 an initiative to introduce fortified flours was halted when last-hour questions about the program could not be answered. OBJECTIVE: To provide information about the need, coverage, and impact of alternative fortification portfolio options to help Zambia overcome its fortification impasse. METHODS: Using household data from the 2006 Living Conditions Monitoring Survey, apparent micronutrient intake levels and apparent consumption levels of sugar, vegetable oil, wheat flour and maize meal were estimated. The household level data were used to estimate individual intakes by assuming that food was distributed among household members in direct proportion to their share of the household's total adult consumption equivalent. Intake adequacy was measured relative to age- and gender-specific Estimated Average Requirements. Combining information on the industrial structure and estimated fortifiable quantities consumed of each food, and assuming the nutrient content is that specified in official regulations, simulations were conducted of the coverage and impact of 14 fortification portfolios. RESULTS: Maize, the most commonly consumed food, is consumed in a fortifiable form by only 23% of the population. Sugar fortification is estimated to have reduced inadequate intake of vitamin A from 87% to 79%. Introducing oil fortification could reduce the prevalence of inadequate vitamin A intake to 61%, and fortifying roller and breakfast maize meal would further reduce it to 57%, and reduce inadequate iron and zinc intakes by 2.2% and 5.5%, respectively. Implementing WHO flour guidelines would triple the potential iron and zinc impacts. CONCLUSION: Analysis of LCMS apparent consumption data have helped address important information gaps and provide better understanding of the coverage and impacts of alternative fortification portfolios.

Assessing Zambia's industrial fortification options: getting beyond changes in prevalence and cost-effectiveness.

Background. Since fortification of sugar with vitamin A was mandated in 1998, Zambia's fortification program has not changed, while the country remains plagued by high rates ofmicronutrient deficiencies. Objective. To provide evidence-based fortification options with the hope of reinvigorating the Zambian fortification program. Methods. Zambia's 2006 Living Conditions Monitoring Survey is used to estimate the apparent intakes of vitamin A, iron, and zinc, as well as the apparent consumption levels and coverage of four fortification vehicles. Fourteen alternativefoodfortification portfolios are modeled, and their costs, impacts, average cost-effectiveness, and incremental cost-effectiveness are calculated using three alternative impact measures. Results. Alternative impact measures result in different rank orderings of the portfolios. The most cost-effective portfolio is vegetable oil, which has a cost per disability-adjusted life-year (DALY) saved ranging from 12% to 25% of that of sugar, depending on the impact measure used. The public health impact of fortified vegetable oil, however, is relatively modest. Additional criteria beyond cost-effectiveness are introduced and used to rank order the portfolios. The size of the public health impact, the total cost, and the incremental cost-effectiveness of phasing in multiple vehicle portfolios over time are analyzed. Conclusions. Assessing fortification portfolios by measuring changes in the prevalence of inadequate intakes underestimates impact. A more sensitive measure, which also takes into account change in the Estimated Average Requirement (EAR) gap, is provided by a dose-response-based approach to estimating the number ofDALYs saved. There exist highly cost-effective fortification intervention portfolios with substantial public health impacts and variable price tags that could help improve Zambians' nutrition status.

Policy implications of using a household consumption and expenditures survey versus an observed-weighed food record survey to design a food fortification program.

BACKGROUND: Observed-Weighed Food Record Surveys (OWFR) are regarded as the most precise dietary assessment methodology, despite their recognized shortcomings, which include limited availability, high cost, small samples with uncertain external validity that rarely include all household members, Hawthorne effects, and using only 1 or 2 days to identify "usual intake." Although Household Consumption and Expenditures Surveys (HCES) also have significant limitations, they are increasingly being used to inform nutrition policy OBJECTIVE: To investigate differences in fortification simulations based on OWFR and HCES from Bangladesh. METHODS: The pre- and postfortification nutrient intake levels from the two surveys were compared. RESULTS: The total population-based rank orderings of oil, wheat flour, and sugar coverage were identical for the two surveys. OWFR found differences in women's and children's coverage rates and average quantities consumed for all three foods that were not detected by HCES. Guided by the Food Fortification Formulator, we found that these differences did not result in differences in recommended fortification levels. Differences were found, however, in estimated impacts: although both surveys found that oil would be effective in reducing the prevalence of inadequate vitamin A intake among both subpopulations, only OWFR also found that sugar and wheat flour fortification would significantly reduce inadequate vitamin A intake among children. CONCLUSIONS: Despite the less precise measure of food consumption from HCES, the two surveys provide similar guidance for designing a fortification program. The external validity of these findings is limited. With relatively minor modifications, the precision of HCES in dietary assessment and the use ofHCES in fortification programming could be strengthened.

Household Consumption and Expenditures Surveys (HCES): a primer for food and nutrition analysts in low- and middle-income countries.

BACKGROUND: The dearth of 24-hour recall and observed-weighed food record data--what most nutritionists regard as the gold standard source of food consumption data-has long been an obstacle to evidence-based food and nutrition policy. There have been a steadily growing number of studies using household food acquisition and consumption data from a variety of multipurpose, nationally representative household surveys as a proxy measure to overcome this fundamental information gap. OBJECTIVE: To describe the key characteristics of these increasingly available Household Consumption and Expenditures Surveys (HCES) in order to help familiarize food and nutrition analysts with the strengths and shortcomings of these data and thus encourage their use in low- and middle-income countries; and to identify common shortcomings that can be readily addressed in the near term in a country-by-country approach, as new HCES are fielded, thereby beginning a process of improving the potential of these surveys as sources of useful data for better understanding food- and nutrition-related issues. METHODS: Common characteristics of key food and nutrition information that is available in HCES and some basic common steps in processing HCES data for food and nutrition analyses are described. RESULTS: The common characteristics of these surveys are documented, and their usefulness in addressing major food and nutrition issues, as well as their shortcomings, is demonstrated. CONCLUSIONS: Despite their limitations, the use of HCES data constitutes a generally unexploited opportunity to address the food consumption information gap by using survey data that most countries are already routinely collecting.