Food Security
High School
Definition
Reliable access for all people to enough safe, affordable, and nutritious food. It depends on agricultural systems, trade, and stability, and is threatened by factors such as climate change, conflict, and poverty.
Worked examples
A family in rural Kenya has year-round access to diverse crops from local farms, can afford staple foods, and receives government-subsidized grain during drought.
All four pillars are met: availability of food, economic access, utilization (nutrition), and stability over time.
After a civil war disrupts supply chains, a city's markets have empty shelves and prices triple, leaving many residents unable to buy enough food.
Conflict has broken both availability and affordability, creating food insecurity.
Common mistakes
- Food security means there is enough food produced globally, so no one goes hungry. → Food security requires that people can actually access, afford, and use that food. Global supply alone does not guarantee local access or affordability.
- Only famines count as food insecurity. → Chronic hunger, malnutrition, and unreliable access are all forms of food insecurity. Food insecurity exists on a spectrum, from mild worry about meals to severe hunger.
- Food security is only an issue in developing countries. → Food insecurity affects people in wealthy nations too, especially low-income and marginalized groups. Poverty and inequality create food insecurity even in high-income countries.
Where you'll use it next
You'll apply food security when studying global development, sustainability and climate policy, international trade, public health and nutrition, and humanitarian crises in geography, economics, and global studies courses.
See also
Sustainable DevelopmentGlobal HealthHuman-Environment InteractionLiving StandardsEconomic InequalityWater Resources
Reviewed by Pat Cheng, M.Ed. — StudyPug Curriculum Lead · Last updated June 6, 2026