Regional Codex Guidelines and Their Potential To Impact Food Safety in Traditional Food Markets.

ABSTRACT: Traditional food markets frequently have inadequate infrastructure, limited access to potable water, unsanitary conditions, and inadequate storage facilities, making them especially risky places for the growth and spread of foodborne pathogens. Traditional markets also often lack effective government oversight. Government programs are important for providing a foundation to manage food safety by setting and enforcing minimum food safety and quality standards and by establishing uniform standards for the conduct of food businesses. Four regional guidelines developed by the Codex Alimentarius to improve the safety of street-vended food were examined for their application to traditional food markets. These guidelines provide important standards that can be used to improve food safety in traditional food markets in many countries, including advice to governments and market authorities in the areas of policy and regulation, infrastructure, food handling, vendor health and hygiene, and training and education. The guidelines can be supplemented with additional material from the World Health Organization and the Food and Agriculture Organization of the United Nations. However, given the gaps identified in the individual regional guidelines, a uniform international standard is needed for national, regional, and local governments to use when managing food safety in traditional markets.

Using implementation research for evidence-based programme development: a case study from Kenya.

The few available studies of programme effectiveness in nutrition find that programmes are less effective than would be predicted from the efficacy trials that are the basis for evidence-based programming. Some of these are due to gaps in utilisation within households. To a greater extent, these gaps can be attributed to problems in programme design and implementation. 'Implementation research in nutrition' is an emerging area of study aimed at addressing this problem, by building an evidence base and a sound theory to design and implement programmes that will effectively deliver nutrition interventions. The purpose of this supplement to Maternal & Child Nutrition is to contribute to this growing area of implementation research. The series of papers presented and the reflections for policymaking and programmes, combined with the reflections on the application of ethnography to this area of inquiry, illustrate the value of systematic research undertaken for the purpose of supporting the design of nutrition interventions that are appropriate for the specific populations in which they are undertaken.

Biofortification: a new tool to reduce micronutrient malnutrition.

BACKGROUND: The density of minerals and vitamins in food staples eaten widely by the poor may be increased either through conventional plant breeding or through the use of transgenic techniques, a process known as biofortification. OBJECTIVE: HarvestPlus seeks to develop and distribute varieties of food staples (rice, wheat, maize, cassava, pearl millet, beans, and sweet potato) that are high in iron, zinc, and provitamin A through an interdisciplinary, global alliance of scientific institutions and implementing agencies in developing and developed countries. METHODS: In broad terms, three things must happen for biofortification to be successful. First, the breeding must be successful--high nutrient density must be combined with high yields and high profitability. Second, efficacy must be demonstrated--the micronutrient status of human subjects must be shown to improve when they are consuming the biofortified varieties as normally eaten. Thus, sufficient nutrients must be retained in processing and cooking and these nutrients must be sufficiently bioavailable. Third, the biofortified crops must be adopted by farmers and consumed by those suffering from micronutrient malnutrition in significant numbers. RESULTS: Biofortified crops offer a rural-based intervention that, by design, initially reaches these more remote populations, which comprise a majority of the undernourished in many countries, and then penetrates to urban populations as production surpluses are marketed. In this way, biofortification complements fortification and supplementation programs, which work best in centralized urban areas and then reach into rural areas with good infrastructure. CONCLUSIONS: Initial investments in agricultural research at a central location can generate high recurrent benefits at low cost as adapted, biofortified varieties become available in country after country across time at low recurrent costs.

From harvest to health: challenges for developing biofortified staple foods and determining their impact on micronutrient status.

BACKGROUND: The use of conventional breeding techniques and biotechnology to improve the micronutrient quality of staple crops is a new strategy to address micronutrient deficiencies in developing countries. This strategy, referred to as "biofortification," is being developed and implemented through the international alliance of HarvestPlus to improve iron, zinc, and vitamin A status in low-income populations. OBJECTIVE: The objective of this paper is to review the challenges faced by nutritionists to determine and demonstrate the ability of biofortified crops to have an impact on the nutritional and health status of target populations. METHODS: We reviewed available published and unpublished information that is needed to design and evaluate this strategy, including issues related to micronutrient retention in staple foods, micronutrient bioavailability from plant foods, and evidence for the efficacy of high-micronutrient-content staple foods to improve micronutrient status. RESULTS: Further information is needed on the retention of micronutrients in staple foods, in particular of provitamin A carotenoids, when stored and prepared under different conditions. The low bioavailability of iron from staple foods and the ability to demonstrate an impact on zinc status are specific challenges that need to be addressed. In target countries, infections and other micronutrient deficiencies may confound the ability to affect micronutrient status, and this must be taken into account in community-based studies. CONCLUSIONS: Information to date suggests that biofortification has the potential to contribute to increased micronutrient intakes and improved micronutrient status. The success of this strategy will require the collaboration between health and agriculture sectors.