Food, Health and Human Security

Introduction

Food, health, and human security are closely connected dimensions of human well-being. People cannot live securely when they lack sufficient food, face preventable disease, or cannot access essential healthcare. Likewise, conflict, poverty, displacement, environmental degradation, and climate-related shocks can undermine food systems and public health.

Traditional security analysis often emphasizes the protection of states from external military threats. Human security broadens the focus to the survival, livelihood, dignity, and well-being of individuals and communities. It does not replace national security; rather, it highlights the ways insecurity affects people directly.

Food and health security also have international implications. Disease outbreaks cross borders, food prices respond to global markets, and supply disruptions can affect multiple countries. Cooperation among governments, international organizations, health institutions, and humanitarian agencies is therefore essential.

Core Concepts

Human security: An approach to security that focuses on protecting people from serious threats to their survival, livelihoods, and dignity. The concept includes economic, food, health, environmental, personal, community, and political dimensions.

Food security: A condition in which all people, at all times, have physical, social, and economic access to sufficient, safe, and nutritious food that meets their dietary needs and preferences for an active and healthy life.

Health security: The capacity to prevent, detect, prepare for, and respond to health threats that endanger individuals, communities, or populations.

Nutrition security: A condition in which people have access to adequate nutrition, supported by sufficient food, safe water, healthcare, sanitation, and appropriate care practices.

Public health: The organized effort to protect and improve population health through prevention, health promotion, surveillance, policy, and collective action.

Global health: The study and practice of improving health and achieving equity in health outcomes across national borders, through international cooperation and multidisciplinary approaches.

Vulnerability: The susceptibility of individuals or communities to harm, combined with their ability to prepare for, withstand, and recover from threats.

Resilience: The ability of people, communities, and systems to absorb shocks, adapt, and recover while maintaining essential functions.

The Dimensions of Food Security

Food security is commonly analysed through four core dimensions.

Availability: The presence of sufficient food through domestic production, imports, food stocks, and other sources.

Access: The ability of individuals and households to obtain food physically, socially, and economically.

Utilization: The body’s ability to benefit from food, influenced by diet quality, food safety, health, sanitation, and nutritional absorption.

Stability: The consistency of availability, access, and utilization over time, without recurring disruptions.

A country may produce sufficient food nationally while some households remain food insecure because of poverty, conflict, weak distribution systems, or unequal access. National food supply and household food security are therefore related but distinct.

Food Insecurity and Malnutrition

Food insecurity: Limited or uncertain access to adequate and nutritious food.

Acute food insecurity: A severe food-security condition that threatens lives or livelihoods and requires urgent action, assessed under recognized analytical frameworks.

Chronic food insecurity: Persistent difficulty obtaining sufficient and nutritious food over an extended period.

Hunger: The physical sensation associated with insufficient food intake, also used more broadly to describe inadequate food access.

Malnutrition: Deficiencies, excesses, or imbalances in energy or nutrients. It includes undernutrition, micronutrient deficiencies, and overweight or obesity.

Undernutrition: Inadequate intake or absorption of energy or nutrients, potentially leading to wasting, stunting, or underweight.

Stunting: Low height for age, commonly associated with chronic or recurrent undernutrition and related adverse conditions in children.

Wasting: Low weight for height, often associated with recent or severe weight loss or inadequate weight gain.

Micronutrient deficiency: Inadequate levels of essential vitamins or minerals, such as iron, iodine, vitamin A, or zinc.

Dietary diversity: The variety of foods consumed, often used as an indicator of diet quality and access to different food groups.

Food safety: The handling, preparation, storage, and production of food in ways that prevent contamination and reduce foodborne illness.

Global Food Systems

Food system: The interconnected activities and actors involved in producing, processing, transporting, marketing, consuming, and disposing of food.

Agricultural productivity: The amount of agricultural output produced relative to inputs such as land, labour, water, and capital.

Sustainable agriculture: Farming practices that support production and livelihoods while conserving soil, water, biodiversity, and long-term productive capacity.

Food supply chain: The network through which food moves from producers to processors, distributors, retailers, and consumers.

Food loss: Reduction in the quantity or quality of food during production, post-harvest handling, storage, transport, and processing.

Food waste: Food discarded or not consumed, particularly at retail, food-service, and household stages, depending on the measurement framework.

Strategic food reserves: Stocks maintained by governments or other institutions to respond to shortages, price shocks, or emergencies.

Food price volatility: Significant changes in food prices over time, which can undermine household purchasing power and complicate planning.

Import dependence: Reliance on food imports to meet domestic needs. It may create exposure to global price changes, transport disruptions, and export restrictions.

Food sovereignty: A concept emphasizing the rights and ability of peoples and communities to shape their food systems, including agricultural priorities, production, and access. Its definitions and policy interpretations vary.

Health Security and Public Health

Disease surveillance: The systematic collection, analysis, interpretation, and use of health data to detect and respond to health threats.

Epidemic: An occurrence of disease cases above what is normally expected in a population or area over a specified period.

Pandemic: An epidemic that spreads across multiple countries or continents and affects a large number of people.

Emerging infectious disease: An infectious disease that is newly recognized or increasing in incidence or geographical range.

Zoonotic disease: A disease that can be transmitted between animals and humans.

Pathogen: A biological agent, such as a virus, bacterium, fungus, or parasite, capable of causing disease.

Vaccination: The administration of a vaccine to stimulate an immune response and help protect against a disease.

Universal health coverage (UHC): A goal under which all people can access needed quality health services without suffering financial hardship from the cost of care.

Primary healthcare: Essential, accessible healthcare that forms the foundation of a health system and addresses people’s needs across the life course.

Health system resilience: The ability of a health system to prepare for, respond to, and recover from shocks while maintaining essential services.

Antimicrobial resistance (AMR): The ability of microorganisms to survive or grow despite exposure to medicines designed to kill them or inhibit their growth. It can make infections more difficult to treat.

International Institutions and Cooperation

World Health Organization (WHO): The United Nations specialized agency responsible for international public health leadership, guidance, coordination, and technical cooperation.

Food and Agriculture Organization (FAO): A UN specialized agency working to improve agriculture, food security, nutrition, and the sustainable use of food and agricultural resources.

World Food Programme (WFP): A UN organization that provides food assistance and supports emergency response and efforts to address hunger.

International Fund for Agricultural Development (IFAD): An international financial institution focused on rural poverty reduction and investment in rural people and agricultural development.

United Nations Children’s Fund (UNICEF): A UN organization supporting child health, nutrition, protection, education, and well-being.

International Health Regulations (IHR): A legally binding international framework intended to help prevent, protect against, control, and respond to the international spread of disease while avoiding unnecessary interference with international traffic and trade. The applicable obligations depend on the relevant version and amendments.

One Health: An integrated approach recognizing the connections among human, animal, plant, and environmental health.

Global health governance: The institutions, rules, partnerships, and processes through which international health issues are coordinated and addressed.

Humanitarian coordination: The organization of emergency assistance among governments, UN agencies, NGOs, and other actors to reduce duplication and address urgent needs.

Conflict, Climate and Human Security

Conflict-induced food insecurity: Food deprivation caused or intensified by violence, displacement, destroyed infrastructure, disrupted markets, or restrictions on humanitarian access.

Weaponization of food: The use of food deprivation, supply control, or access restrictions as a means of coercion or conflict. The legality of specific conduct depends on the circumstances and applicable international law.

Climate-sensitive disease: A disease whose incidence or transmission patterns can be affected by climate conditions, such as temperature, rainfall, or flooding.

Water security: Reliable access to sufficient and safe water for people, livelihoods, ecosystems, and economic activity.

Displacement: The forced movement of people from their homes due to conflict, persecution, disasters, development projects, or other causes.

Refugee: A person who meets the applicable legal definition of a refugee under relevant international or domestic law.

Internally displaced person (IDP): A person forced to leave their home but who has not crossed an internationally recognized state border.

Humanitarian access: The ability of humanitarian organizations and personnel to reach people in need and deliver assistance safely and effectively.

Health equity: The absence of unfair and avoidable differences in health outcomes and access to health opportunities among population groups.

Key Distinctions

Key Terms at a Glance

• Early warning system: A system for identifying and communicating emerging risks before they develop into more serious crises.
• Emergency preparedness: Planning and capacity-building before a crisis occurs.
• Health diplomacy: Diplomatic engagement concerning health cooperation, disease threats, medicines, and health policy.
• Food assistance: Support provided to people experiencing hunger or food insecurity.
• Social protection: Policies that help people manage risks and maintain basic living standards.
• Cold chain: Temperature-controlled storage and transport needed to preserve products such as vaccines and certain foods.
• Disease burden: The overall impact of illness, disability, and premature death on a population.
• Outbreak response: Measures taken to detect, contain, and manage an unusual increase in disease.
• Food-system resilience: The ability of food systems to withstand disruptions and continue supplying food.
• Nutrition-sensitive policy: Policy designed to improve nutrition through areas such as agriculture, education, sanitation, and social protection.

Related Glossaries

• 9.2 Human Security and Non-Traditional Security
• 10.5 Conflict Prevention, Management and Resolution
• 12.5 Resources, Energy and Geoeconomics
• 17.1 Development and Human Development
• 17.2 Poverty and Global Inequality
• 17.4 Sustainable Development and SDGs
• 18.4 Environmental Security and Resource Conflicts
• 18.5 Water Security and Transboundary Waters

Conclusion

Food, health, and human security are interdependent. Reliable food supplies do not automatically eliminate hunger, and healthcare systems cannot protect populations effectively without adequate nutrition, sanitation, and resilient infrastructure. Conflict, climate change, poverty, and global economic shocks can undermine all these dimensions. Effective responses require prevention, strong public institutions, international cooperation, reliable data, and policies that protect vulnerable populations.