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The purpose of this paper is to develop a group-based food diversity index, which represents diversity in household expenditures across food subgroups. The index is compared to a product code-based index and applied to reassess determinants of food diversity demand.

A group-based food diversity index is developed by adapting the US Healthy Food Diversity Index. Using Food Acquisition and Purchase Survey data on 4,341 US households, correlation coefficients, descriptive statistics and linear regressions are estimated to compare and reassess the determinants of group and product code-based food diversity demand.

Results show that the group and product code indices capture different forms of food diversity. The indices are only moderately correlated and have varying means and skewness. Education, gender, age, household size, race, SNAP and food expenditures are found to significantly affect food diversity. However, the magnitude and direction of the effects vary between group and product code indices. Given these differences, it is essential that studies select a diversity index that corresponds to their objective. Results suggest that group-based indices are appropriate for informing food and nutrition policy, while product code-based indices are ideal for guiding food industry management’s decision making.

A group-based food diversity index representative of household expenditures across food subgroups is developed.

Emphasis on the potential roles diverse farm production systems could play in enhancing food consumption variety and nutritional well-being in rural developing countries has increased in recent times. However, there are paucities of empirical works connecting diversity in agricultural production and dietary diversity in Africa, and Nigeria in particular. The purpose of this paper is to, therefore, examine, among others, the causal link between farm production diversity and consumption of varied diets among farm households in Nigeria using a nationally representative panel data.

Unlike the simple food count measure, the authors adopt two-dimensional indices to assess food diversity, and estimated both fixed and random effects versions of panel data econometrics models with the two-dimensional indices as regressands.

Results show that food production system is less diverse with an average farm household consuming fairly varied foods across seasons. All the econometrics models estimated consistently established positive and statistically significant influence of farm production diversity on household dietary diversity. Higher food prices, especially rice and roots and tubers could substantially reduce dietary diversity with the negative effects likely to be more devastating for low-income farm households. The specificity of household being a net food seller had positive, although weak influence on dietary diversity.

The findings accentuate, among others, the need for strategies to promote farm production diversity, transform farm households to net-sellers of foods and enable them take advantage of food price signals to boost farm incomes as important pathway for diet quality improvement and reduction of food insecurity, malnutrition and related diseases in rural Nigeria

Achieving optimal nutrition among mothers and children is still a challenge in many developing country settings, including Ethiopia. Study on dietary diversity concordance of mother-to-child dyads is limited. Hence, this study aims to assess dietary diversity concordance among mother-to-child pairs and its associated factors in Gedeo zone, Southern Ethiopia.

A community-based cross-sectional study was carried out in Gedeo zone, South Ethiopia, from January 1 to February 15, 2019. A multistage sampling technique was used to select study participants. Data was collected by using a pretested and structured questionnaire. Data entry and analysis were done by Epi data version 3.1 and SPSS version 23.0 software, respectively. Bivariate and multivariate logistic regression models were used. Variables with p < 0.25 at bivariate analysis were chosen for multivariate analysis. Variables with a p-value of <0.05 were considered statistically significant.

A total of 665 mother and child dyads participated, with a response rate of 98.6%. High concordance of dietary diversity among mother-to-child pairs was 9%. Age of the mother (adjusted odds ratio [AOR] = 0.21; 95% confidence interval [95% CI]: 0.05–0.84), age of the child between 6 and 11 months (AOR = 5.2; 95% CI: 2.3–11.6), being female (AOR = 1.8; 95% CI: 1.0–3.4), previous history of infection (AOR = 4.4; 95% CI: 1.8–11.5), source of food from the market (AOR = 0.34; 95% CI: 0.12–0.81) and rich wealth index (AOR = 5.7; 95% CI: 2.5–12.9) were the significant factors of high concordance of dietary diversity.

The prevalence of high-concordant dietary diversity among mother and children dyads was very low. Therefore, ensuring multisectoral nutrition interventions that focus on both mothers and children should be considered to improve the good dietary diversity practice.

The nexus between sustainable agri-food production and food security outcomes of farm households in sub-Saharan Africa is attracting policy attention. This study analyzes the effects of crop diversity on the incidence of food scarcity, dietary diversity, and the sale and consumption of own crops.

The study uses panel data collected in 2015 and 2018 on a randomly selected sample of 2553 households from 49 villages in northern Ghana. The study employed a fixed effects modeling approach in the empirical analysis.

The study finds that crop diversity is positively associated with better dietary diversity, reduced hunger, lower food expenditure, and higher consumption of own produce. The results show positive effects of crop diversity on the total harvested output and sale of agricultural production. Whilst sales improved sustainable food and nutrition security by providing purchasing power to buy nutritional inputs in the market, consumption of own produce rather improved food availability by reducing food scarcity and malnutrition.

Crop diversity is one of the pathways for promoting sustainable agri-food production systems to ensure the food and nutritional security of vulnerable populations and promote biodiversity to achieve environmental goals in sub-Saharan Africa. Crop diversity reduces food expenditure and raises rural incomes through improved outputs and sales, which empowers farm households to diversify their dietary options to be able to overcome incidences of hunger and malnutrition in periods of food scarcity.

The present study improves the understanding of sustainable agri-food production through crop diversity and its implications on food and nutrition security outcomes. The panel data and fixed effects modelling approach address the endogeneity problem between crop diversity and household tastes and preferences.

The purpose of this paper is to present a first proposal of a healthy dietary diversity index to evaluate meals in self-service restaurants.

This was a cross-sectional, descriptive pilot study in a Brazilian buffet-style restaurant. The study group was selected by systematic sampling and consisted of 678 individuals aged 16-81 years, who were regular diners at a selected restaurant during lunchtime. Photographs were used to assess food choices and a sociodemographic questionnaire was administered to the subjects. A healthy dietary diversity model was created following WHO recommendations and the Brazilian Food Guide. A consensus workshop was conducted with experts to discuss and classify certain dishes as more or less healthy (high/low energy density). The model attributed negative (−3.0-0.0) and positive (0.0-12.0) scores to different food groups. Higher scores meant greater diversity on the plate, and therefore a greater chance of a healthy meal (=9.0), while a lower score reflected a higher variety of energy-dense foods, such as fried dishes (=6.0).

Most diner’s plates (65.3 per cent) obtained low diversity score indexes (=6) and were considered inadequate, represented the dishes where intake should be controlled from a nutritional viewpoint (over caloric meal). There was a significant association between healthy diversity scores (=9.0) and low variety of high energy density dishes on the plates.

This method of assessing the healthy dietary diversity of a main meal could be tested as an innovative model for investigating the food choices of individuals who eat away from home.

Nutrition is a widely known determinant of health and well-being of individuals. Adequate nutrition is dependent on food availability and optimal dietary intake. Rural communities are known to be disadvantaged in comparison with their urban counterparts This study therefore assessed food security and dietary diversity among adults in a rural community in Remo, Ogun State, Nigeria.

Data for the cross-sectional study were collected using a semi-structured, interviewer-administered questionnaire and a 24-h dietary recall. Data were analyzed with SPSS 20. The relevant descriptive and inferential statistics were calculated. Participation was fully voluntary.

The mean age of respondents was 46.7 ± 19.0 years. Only 43.6 per cent of the respondents were food secure; 43.4 per cent were severely food insecure; 30.3 per cent were moderately food insecure, while 26.3 per cent were mildly food insecure. Low dietary diversity was reported among 55.2 per cent of respondents; 41.0 per cent had medium dietary diversity, while 3.8 per cent had high dietary diversity.

This study was entirely quantitative and facility-based, so could not explore some themes to a greater depth. It however adds to the body of knowledge on dietary diversity and food security among patients accessing primary care services at Ode-Remo and its health implications.

Food security among respondents was low and dietary diversity was sub-optimal, a risk factor for both hidden hunger and multi-nutrient under-nutrition. Dietary diversity was significantly different between food secure and food insecure respondents. Community-directed efforts at improving residents’ food security status and dietary diversification efforts will be most appropriate and sustainable, thereby promoting self-reliance and wellbeing.

The purpose of this study is to compare food consumption and dietary diversity in smallholder cassava value chain households (CVCHs) and non-cassava value chain households (non-CVCHs).

A total of 572 rural households were selected using multi-stage sampling from Oyo and Kwara states, Southwest Nigeria. Socio-demographic, 24 h dietary recall and food frequency questionnaires were used to collect data. Household Dietary Diversity Score (HDDS) and the Minimum Dietary Diversity for Women of Reproductive Age (MDD-W) were measured.

The mean age of respondents was 49.1 ± 17.3 years, 68.3 per cent were female, household sizes ranged from 2-20 with an average of 8 members. Most households consumed monotonous staple-based diets mainly from roots and tubers, cereals and legumes. There was no significant difference in HDDS (6.70 ± 1.37 and 6.77 ± 1.12; p = 0.12) and MDD-W (4.78 ± 1.12 and 4.95 ± 1.16; p = 0.09) for CVCH and non-CVCH respectively. About one-third of all women did not achieve the MDD-W score required for micronutrient adequacy, with the main dietary gap being vitamin A-rich fruits and vegetables.

The findings suggest that there was no influence of households’ involvement in cassava value chain activities on their pattern of food consumption and dietary diversity.

While cassava value chain activities have potential for improved livelihoods among its actors, a nutrition-sensitive approach needs to be incorporated to translate this into their improved food consumption, dietary diversity and nutritional (particularly micronutrient) status.

The purpose of this paper is to examine the impact of urbanicity on rural–urban migrants' dietary diversity and nutrition intake and whether its effect differs across various urban environments of migrants.

Using the individual- and time-invariant fixed effects (two-way FE) model and five-year panel data from the China Health and Nutrition Survey (CHNS), this paper estimates a linear and nonlinear relationship between urbanicity and nutrition. The paper also explores the spatial heterogeneity between rural–urban migrants and rural–suburban migrants. Dietary diversity, total energy intake and the shares of energy obtained from protein and fat, respectively, are used to measure rural–urban migrants' nutrition on both quality and quantity aspects.

The study shows that rural–urban migrants have experienced access to more diverse, convenient and prepared foods, and the food variety consumed is positively associated with community urbanicity. Energy intake is positively and significantly affected by community urbanicity, and it also varies with per capita household income. The obvious inverse U-shaped relationship reveals that improving community urbanicity promotes an increase in the shares of energy obtained from protein and fat at a decreasing rate, until reaching the urbanicity index threshold of 66.69 and 54.26, respectively.

This paper focuses on the nutritional status of rural–urban migrants, an important pillar for China's development, which is often neglected in the research. It examines the urbanicity and the nutrition of migrants in China, which provides a new perspective to understand the dietary and nutritional intake among migrants in the economic and social development. Moreover, the urbanicity index performs better at measuring urban feathers rather than the traditional rural/urban dichotomous classification.

The study aims to examine the mediating effects of escapism (ESC) and ethnic food experience (EFE) in the relationship between diversity (DIV) and behavioral intentions (BI) of visitors attending Hoi An International Food Festival held in Vietnam.

The research takes a predictive and explanatory approach rather than theory confirmation. Partial least squares (PLS) algorithm was used to analyze multiple mediation. The data were collected from 323 attendees through a self-administered questionnaire.

The research highlights that escapism and EFE have positive and significant mediating effects on the relationship between DIV and BI. Furthermore, while EFE is the most important predictor of BI, escapism has emerged as an antecedent variable that deserves to be given the highest importance. Finally, visitors who are participating in their first international food festival do not seem to consider the nexus between DIV and ESC as much as repeaters.

The study's limitations include the collection of data from a single festival and the fact that the analyses are only quantitative. The results contribute to festival organizers by revealing the importance of multiple mediation roles.

This study contributes novel insights to the literature on festival and event management, extending previous studies and filling a gap by proposing ESC and EFE as multiple mediators in the nexus between DIV and BI. The present study provides a comprehensive examination of the influence of individual variables previously analyzed separately on festival-goers' experiences. This facilitated the identification of crucial aspects of the circumstance, thereby reducing any ambiguity.

This paper aims to assess Food Variety Score (FVS), Dietary Diversity Score (DDS) and dietary quality of collected complementary foods consumed in Jimma town, southwest Ethiopia.

Multi-stage stratified simple random sampling method was used to identify 384 children who were between 6 to 24 months of age living in Jimma town, Ethiopia. FVS and DDS were assessed based on 24 h recall method. Aliquot of infant’s diet samples were collected from randomly selected 30 household mothers feeding to 6-24 months aged children, and they are combined to get 15 samples by enquiring the ingredients similarly used in preparation. The major nutrients, anti-nutrients were determined with standard procedures. Further, nutrient adequacy and mean adequacy were determined for collected samples.

Results showed that mean FVS was 7.14 ± 4.07 (range 0 to 18) and DDS was 3.44 ± 1.75 (range 1 to 8). Consumption of diversified diet among the studied population significantly associated with residence areas of children’s (p = 0.001), age of the care taker (p = 0.001), occupation of care takers (p = 0.001), monthly income (p = 0.001), average money spent on food purchase per month (p = 0.001). Average mean adequacy of macronutrients (crude protein, crude fat and carbohydrate) was observed as 0.81, micronutrient (Fe, Ca, Zn) mean adequacy was 0.49 and Vitamin A adequacy was 0.34 for the complementary foods. All the complementary foods were reported mean adequacy of < 1 for macro and micro nutrients.

Studies on dietary diversity and dietary quality of the complementary foods were not documented in Jimma town, Ethiopia. The results of this study are highly useful to understand the complementary foods consumption pattern particularly in dietary diversity and food variety. Moreover, results obtained on dietary quality are very useful to recommend further development in complementary food preparations in the study area.