Case study beef industry in China

"The beef industry provides a window on food safety issues in China's rapidly developing economy. This industry provides particularly useful insights because the government has targeted it for development and because it is dominated by household slaughtering and wet markets, making food safety concerns pervasive. " from TextFood safety ,food security ,Public health ,

Supporting sustainable food shopping

Food contributes a surprisingly large portion of personal greenhouse gas (GHG) emissions. Could pervasive technologies help influence diet choices to reduce this? The authors offer insights for designers of pervasive technologies addressing food and the GHG impacts of diet

Heroes, villains and victims: agricultural subsidies and their impacts on food security and poverty reduction

Subsidies have been a pervasive feature of agricultural policy in both high and low income countries. This chapter describes different kinds of subsidies and reviews evidence on their economic, food security and poverty impacts. The evidence suggests that different subsidy programmes have had in some contexts profoundly positive and in other contexts profoundly negative impacts on food security and on the livelihoods of poor people and poor societies. Discussions of the historical and potential roles of subsidies and their more recent use have, however, been the victim of an unhealthy over-emphasis on their negative effects without sufficient consideration of the potential to overcome these. These issues need to be addressed if agricultural subsidies are to fulfill their potential to make a significant contribution in addressing continuing and emerging challenges to food insecurity and poverty

No. 11: Urban Food Security, Rural Bias and the Global Development Agenda

This discussion paper sets out the global, African, and South African contexts within which both urban development and food security agendas in Africa are framed. It argues that the pervasive rural bias and anti-urbanism identified in the international and regional food security agendas in the first decade of the 21st century have persisted into the second. In examining whether the last decade has brought any significant changes to the dominant discourse and its accompanying sidelining of urbanization and urban food security in policy debate and formulation, the authors find that there are promising signs for cracks in the edifice but that rural bias remains the dominant feature of current thinking about food security policies. Although researchers have begun to press for the urban to be included in the food security agenda, and food to be included in the urban agenda, there has been limited policy uptake to date at the international level and very little at the municipal level. If urban food security is addressed in a substantive manner, it will probably be indirectly, through the actions of the influential global nutrition lobby

CONVENIENCE, ACCESSIBILITY, AND THE DEMAND FOR FAST FOOD

This study explores the growth in demand for fast food. A distinguishing characteristic of fast food is its convenience; in today's pervasive marketplace, consumers need not travel far to find a fast food outlet. This greater availability translates into a decrease in the full price of obtaining a meal, which contributes to greater consumption. Market-level data are used to estimate demand equations in two time periods, incorporating changes in availability as well as prices, income, and various demographic characteristics. Our findings show that greater availability has led to increased consumption. Failure to account for these types of marketplace changes could lead to incorrect inferences regarding the factors responsible for the industry growth.Demand and Price Analysis,

The World Bank Approach to Food Security Analysis

Summary In 1988, the Executive Directors of the World Bank agreed to a new food security initiative for Africa. The purpose of the initiative is to reduce over time Africa's pervasive hunger. To pave the way to do so, the Bank is working with other donors and African Governments to prepare Food security action plans for individual African states. The analytical elements to developing these action plans are: the macroeconomy; the microeconomy (households); food availability; food consumption; and market intermediation. Findings of the work so far include the following: 1) defining the food insecure is an effective way to map poverty; 2) food insecurity is more pervasive in Africa than anticipated; 3) increasing agricultural output in African remains an important goal; and 4) understanding the role of gender in household decsion?making is vital to improved food security

Hunger and Food Insecurity in Nairobi's Slums: An assessment using IRT models'

Although linked to poverty as conditions reflecting inadequate access to resources to obtain food, issues such as hunger and food insecurity have seldom been recognized as important in urban settings. Overall, little is known about the prevalence and magnitude of hunger and food insecurity in most cities. Yet, in sub-Saharan Africa where the majority of urban dwellers live on less than one dollar a day, it is obvious a large proportion of the urban population must be satisfied with just one meal a day. This paper suggests using the one- and two-parameter item response theory (IRT) models to infer a reliable and valid measure of hunger and food insecurity relevant to low income urban settings, drawing evidence from the Nairobi Urban Health and Demographic Surveillance System (NUHDSS). The reliability and accuracy of the items are tested using both the Mokken Scale Analysis and the Cronbach test. The validity of the inferred household food insecurity measure is assessed by examining how it is associated with households? economic status. Results show that food insecurity is pervasive amongst slum dwellers in Nairobi. Only one household in five is food secure, and nearly half of all households are categorized as ?food insecure with both adult and child hunger?. Moreover, in line with what is known about household allocation of resources, evidence indicates that parents often forego food in order to prioritize their children. (229 words)Food insecurity; Hunger; Sub-Saharan Africa; Slum; Nairobi

Food insecurity and linear growth of adolescents in Jimma Zone, Southwest Ethiopia

Background: Although many studies showed that adolescent food insecurity is a pervasive phenomenon in Southwest Ethiopia, its effect on the linear growth of adolescents has not been documented so far. This study therefore aimed to longitudinally examine the association between food insecurity and linear growth among adolescents. Methods: Data for this study were obtained from a longitudinal survey of adolescents conducted in Jimma Zone, which followed an initial sample of 2084 randomly selected adolescents aged 13-17 years. We used linear mixed effects model for 1431 adolescents who were interviewed in three survey rounds one year apart to compare the effect of food insecurity on linear growth of adolescents. Results: Overall, 15.9% of the girls and 12.2% of the boys (P=0.018) were food insecure both at baseline and on the year 1 survey, while 5.5% of the girls and 4.4% of the boys (P=0.331) were food insecure in all the three rounds of the survey. In general, a significantly higher proportion of girls (40%) experienced food insecurity at least in one of the survey rounds compared with boys (36.6%) (P=0.045). The trend of food insecurity showed a very sharp increase over the follow period from the baseline 20.5% to 48.4% on the year 1 survey, which again came down to 27.1% during the year 2 survey. In the linear mixed effects model, after adjusting for other covariates, the mean height of food insecure girls was shorter by 0.87 cm (P<0.001) compared with food secure girls at baseline. However, during the follow up period on average, the heights of food insecure girls increased by 0.38 cm more per year compared with food secure girls (P<0.066). However, the mean height of food insecure boys was not significantly different from food secure boys both at baseline and over the follow up period. Over the follow-up period, adolescents who live in rural and semi-urban areas grew significantly more per year than those who live in the urban areas both for girls (P<0.01) and for boys (P<0.01). Conclusions: Food insecurity is negatively associated with the linear growth of adolescents, especially on girls. High rate of childhood stunting in Ethiopia compounded with lower height of food insecure adolescents compared with their food secure peers calls for the development of direct nutrition interventions targeting adolescents to promote catch-up growth and break the intergenerational cycle of malnutrition

Circadian regulation of glucose, lipid, and energy metabolism in humans.

The circadian system orchestrates metabolism in daily 24-hour cycles. Such rhythms organize metabolism by temporally separating opposing metabolic processes and by anticipating recurring feeding-fasting cycles to increase metabolic efficiency. Although animal studies demonstrate that the circadian system plays a pervasive role in regulating metabolism, it is unclear how, and to what degree, circadian research in rodents translates into humans. Here, we review evidence that the circadian system regulates glucose, lipid, and energy metabolism in humans. Using a range of experimental protocols, studies in humans report circadian rhythms in glucose, insulin, glucose tolerance, lipid levels, energy expenditure, and appetite. Several of these rhythms peak in the biological morning or around noon, implicating earlier in the daytime is optimal for food intake. Importantly, disruptions in these rhythms impair metabolism and influence the pathogenesis of metabolic diseases. We therefore also review evidence that circadian misalignment induced by mistimed light exposure, sleep, or food intake adversely affects metabolic health in humans. These interconnections among the circadian system, metabolism, and behavior underscore the importance of chronobiology for preventing and treating type 2 diabetes, obesity, and hyperlipidemia

Life Cycle Costing and Food Systems: Concepts, Trends, and Challenges of Impact Valuation

Our global food systems create pervasive environmental, social, and health impacts. Impact valuation is an emerging concept that aims to quantify all environmental, social, and health costs of food systems in an attempt to make the true cost of food more transparent. It also is designed to facilitate the transformation of global food systems. The concept of impact valuation is emerging at the same time as, and partly as a response to, calls for the development of legal mechanisms to address environmental, social, and health concerns. Information has long been understood both as a necessary precursor for regulation and as a regulatory tool in and of itself. With global supply chains and widespread impacts, data necessary to produce robust and complete impact valuation requires participation and cooperation from a variety of food system actors. New costing methods, beyond basic accounting, are necessary to incorporate the scope of impacts and stakeholders. Furthermore, there are a range of unanswered questions surrounding realizations of impact valuation methods, e.g. data sharing, international privacy, corporate transparency, limitations on valuation itself, and data collection standardization. Because of the proliferation of calls for costing tools, this article steps back and assesses the current development of impact valuation methods. In this article, we review current methods and initiatives for the implementation of food system impact valuation. We conclude that in some instances, calls for the implementation of costing have outpaced available and reliable data collection and current costing techniques. Many existing initiatives are being developed without adequate consideration of the legal challenges that hinder implementation. Finally, we conclude with a reminder that although impact valuation tools are most often sought and implemented in service of market-based tools for reform, they can also serve as a basis for robust public policies