Food Sustainability
Summary
Food sustainability addresses the capacity of agricultural and food-supply systems to nourish current and future generations without exhausting natural resources or undermining environmental resilience. Drivers of unsustainability include population growth, dietary shifts towards resource-intensive foods, land conversion, freshwater depletion and greenhouse-gas emissions from production, processing and waste. At the same time, malnutrition coexists with rising obesity and diet-related disease, while supply-chain losses and food waste squander one-third of all produce. Achieving food sustainability therefore requires a systems approach that reconciles crop and livestock productivity with ecosystem stewardship, promotes equitable access to healthy diets, minimises waste through circular‐economy principles and realigns policies and markets to reward low-impact practices. Innovations in precision agriculture, agroecology, biotechnology and postharvest management must be complemented by voluntary and regulatory measures, economic incentives and consumer engagement to drive dietary transitions towards plant-forward, locally adapted and nutritionally adequate food patterns that deliver health, climate and social benefits.
Research from Nature Portfolio
Low-cost informational interventions in cafeteria settings have been shown to yield a sustained drop in meat purchases, with a 5.6-percentage-point reduction persisting over three years after a single climate-and-health appeal, demonstrating the long-term power of targeted messages to shift dietary behaviour. Long-lasting reductions in meat demand were also observed following organisation-level adoption of “nature-positive” food procurement targets, where quantified biodiversity footprints guided menu planning. These strategies indicate that both individual and institutional decisions can yield durable shifts towards lower-impact eating patterns when environmental objectives are embedded in choice architectures and supply-chain commitments.
Food Sustainability publication trend
The graph below shows the total number of articles in food sustainability across all publications each year (not limited to Nature Index journals).
Technical terms
Sustainable intensification: The process of increasing food output per hectare while safeguarding environmental integrity and resource bases.
Circular economy: An economic model that minimises waste and maximises resource reuse by re-entering by-products into production loops.
Choice architecture: Design of environments or menus that unconsciously steer decisions towards sustainable or healthier options.
Bioactive compound: A molecule extracted from plant or animal waste streams that exerts beneficial physiological effects.
Nature-positive procurement: Institutional purchasing criteria that quantify and aim to reduce biodiversity footprints of food supplies.
References
- Low-cost climate-change informational intervention reduces meat consumption among students for 3 years. Nature Food (2023).
- Nature-positive goals for an organization’s food consumption. Nature Food (2023).
- Valorisation potential and challenges of food side product streams for food applications: A review using the example of Switzerland. Future Foods (2024).
About these summaries
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