【世界银行】重塑农业食品行业，实现更健康的饮食：探索农业食品公共支持与饮食质量之间的联系-2025_136页_7mb

Summary of "Reshaping the Agrifood Sector for Healthier Diets"

Core Content

This document explores the relationship between agrifood public support and diet quality, emphasizing the need to reshape agrifood policies to promote healthier diets and reduce malnutrition. It highlights the growing triple burden of malnutrition, which includes undernutrition, micronutrient deficiencies, and overweight/obesity, and discusses the economic and health consequences of these issues. The document also evaluates the current composition and impact of agrifood public support, identifies opportunities for repurposing such support, and provides country-level case studies to illustrate the potential effects of policy changes.

Main Points

1. The Growing Triple Burden of Malnutrition

• Undernutrition in children remains a critical issue, with stunting and wasting still prevalent in Asia and Africa.
• Micronutrient deficiencies are widespread, particularly among women of reproductive age (WRA) and children.
• Overweight and obesity are on the rise globally, especially in low- and middle-income countries (LMICs), and are major risk factors for noncommunicable diseases (NCDs).
• Unhealthy diets are a core driver of malnutrition, with overconsumption of sugar, red meat, and processed meat, and underconsumption of whole grains, fruits, and vegetables.

2. The Role of Agrifood Public Support

• Agrifood public support is large, distortionary, and inefficient, amounting to $854 billion annually.
• Most support is directed toward producers, with 74% of it being market-distorting (MPS), while 12% goes to general services support (GSS) and 13% to consumer subsidies.
• Producer support is often regressive, favoring wealthier farmers who use more inputs and produce more output.
• Input subsidies and market price support contribute to the overuse of fertilizers, particularly in East Asia and South Asia.

3. Misalignment with Public Health Goals

• Current agrifood policies are misaligned with public health goals, as they prioritize high-consumption commodities like grains and meats over underconsumed, healthier foods like fruits and vegetables.
• In many countries, support for sugar production coexists with taxes on sugar-sweetened beverages (SSBs), leading to inconsistent policies and excessive sugar consumption.
• The hidden health costs of the food system are estimated to be $6.6 trillion, with undernutrition and overweight/obesity being the primary contributors.

4. Opportunities for Repurposing Agrifood Support

• Repurposing public support can lead to multiple benefits, including improved nutrition, poverty alleviation, and emissions reductions.
• Global simulations suggest that redirecting support toward research and development (R&D) and technological investments could:
  • Increase real national income by 1.6%.
  • Reduce extreme poverty by 1%.
  • Lower the cost of a healthy diet by 18%.
  • Boost crop production by 16% and livestock by 11%.
  • Cut agricultural emissions by 41%.
• Redirecting support from producers to consumers for healthier foods could reduce extreme poverty by 0.06% globally and greenhouse gas emissions by 0.18%, while also lowering the cost of a healthy diet by 3.34%.

5. Country-Level Case Studies

• Bangladesh: Input subsidies, roads, and cash transfers have been analyzed for their impact on food security and diet quality.
• Malawi: Input subsidies, irrigation, and cash transfers have been evaluated for their role in improving food access and dietary diversity.
• These case studies highlight the importance of targeted interventions and the need to consider local contexts when designing agrifood policies.

6. Methodology and Data

• The analysis uses cross-country regression estimations and within-country studies to evaluate the impact of agrifood support on diet quality.
• Key data sources include:
  • OECD Database on Agrifood Support
  • Global Dietary Database (GDD)
  • FAO/WHO Global Individual Food Consumption Data Tool (GIFT)
• The study emphasizes the need for better data and advanced techniques to understand the links between agrifood policy, food consumption, and diet quality.

Key Information

• Global food systems have significant hidden costs exceeding their market value by an estimated $2 trillion.
• Stunting is associated with an annual per capita income penalty of 5%.
• Overweight and obesity cost the global economy $1.96 trillion in 2020.
• Ultra-processed foods are increasingly replacing traditional diets, leading to adverse health outcomes.
• Food-based dietary guidelines from WHO and FAO recommend reducing free sugar, sodium, trans fats, and alcohol, while increasing the intake of fruits, vegetables, legumes, and whole grains.
• Public support is often regressive and distortionary, requiring policy reforms that consider political economy and feasibility.

Conclusion

The document concludes that repurposing agrifood support can lead to positive outcomes in health, nutrition, and the environment. It calls for complementary interventions across sectors and country-specific analyses to better align agrifood policies with public health objectives. The findings suggest that targeted support for healthier foods and reforms in subsidy structures can help reduce malnutrition and improve diet quality globally.