Food Security and Adaptive Strategies in Small Island Developing States

Small Island Developing States (SIDS) confront acute food security challenges arising from geographic isolation, limited arable land and freshwater resources, heavy dependence on food imports and mounting pressures from climate change. These interconnected factors exacerbate vulnerability to extreme weather events, disrupt supply chains and heighten exposure to nutrient-poor, processed foods. At the same time, many SIDS are experiencing rising rates of diet-related non-communicable diseases, driven by shifts away from traditional diets towards convenience foods. In response, adaptive strategies have centred on strengthening local production through diversified agro-ecological practices, smallholder support and the revival of home gardens. Policy mechanisms such as targeted subsidies, extension services and institutional procurement (for example in school feeding programmes) seek to bolster domestic supply and encourage healthier diets. Community engagement and intersectoral coordination have emerged as critical components, enabling knowledge sharing, capacity building and local ownership of food system transformation. Technological innovations—including greenhouse cultivation, salt-tolerant crops and solar-powered irrigation—offer further resilience against environmental stressors. Regional networks and governance frameworks aim to harmonise standards, mobilise resources and integrate traditional knowledge with contemporary research. Collectively, these measures underline the global significance of SIDS as living laboratories for resilient food systems and provide practical lessons for other vulnerable regions.

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Food Security and Adaptive Strategies in Small Island Developing States publication trend

The graph below shows the total number of articles in food security and adaptive strategies in small island developing states across all publications each year (not limited to Nature Index journals).

Technical terms

Food security: The 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.

Food sovereignty: The right of peoples to define their own food and agriculture systems, emphasising local control, ecological sustainability and culturally appropriate production.

Adaptive capacity: The ability of individuals, communities or systems to adjust to potential damage, to take advantage of opportunities or to respond to consequences arising from environmental or socio-economic change.

Dietary diversity: A measure of the number of distinct food groups consumed over a given period, used as a proxy for nutrient adequacy of diets.

References

1. On increasing the contribution of locally produced fresh foods to school meals in the Caribbean. Food Security (2023).
2. “We used to get food from the garden.” Understanding changing practices of local food production and consumption in small island states. Social Science & Medicine (2021).
3. Perspectives on strengthening local food systems in Small Island Developing States. Food Security (2022).
4. Dietary Patterns, Food Insecurity, and Their Relationships with Food Sources and Social Determinants in Two Small Island Developing States. Nutrients (2022).