LONDON — Global food systems are under mounting strain from converging pressures including climate disruption, rising input costs, and shifting consumer behaviour, analysts and industry leaders warned this week, as a new report from the International Food Economy Institute projected that the share of household income spent on food in lower-middle-income countries could rise by as much as seven percentage points by 2030 if current trends persist.
The report, released Wednesday, tracks more than 60 indicators across supply chains spanning primary agriculture, processing, distribution, and retail. Its authors describe an interconnected web of vulnerabilities: droughts suppressing grain yields in southern Europe and parts of South Asia, shipping cost volatility affecting the import-dependent economies of West Africa and Central America, and labour shortages in food manufacturing slowing output in high-income markets.
Of particular concern to researchers is the concentration of staple crop production in a small number of geographic regions. Wheat, maize, rice, and soybeans together represent the caloric backbone of global diets, and four countries account for more than half of the world’s exportable surplus in at least one of those crops. When any single major producing region experiences a poor harvest, price shocks ripple across import-dependent markets within weeks, a dynamic well documented during the commodity crises of 2008, 2011, and 2022.
“The food chain has never been longer, or more exposed,” said Dr. Isabelle Fontaine, one of the report’s lead authors. “We have built extraordinary efficiency into the system, but efficiency and resilience are often in tension. The same just-in-time logistics that keep supermarket shelves full in normal conditions create fragility when two or three stressors arrive simultaneously.”
Retailers and processors are responding with a mix of strategies. Several major European grocery chains have expanded their use of multi-origin sourcing contracts, reducing dependence on any single supplier country. Others are investing in vertical farming partnerships to bring leafy vegetable production closer to urban consumption centres, though critics note that controlled-environment agriculture remains energy-intensive and economically viable only for high-value crops.
Consumer behaviour is also reshaping demand patterns in ways that complicate supply planning. Across wealthy economies, per capita consumption of red meat has declined modestly for the third consecutive year, while demand for plant-based protein products continues to grow, if somewhat more slowly than early projections suggested. In contrast, rapid income growth in parts of Southeast Asia and sub-Saharan Africa is increasing demand for protein-rich foods, putting additional pressure on global feed grain markets.
Smallholder farmers, who produce an estimated 70 percent of food consumed in developing economies, remain particularly exposed to input cost volatility. Fertiliser prices, though down from their 2022 peaks, are still roughly 35 percent above their five-year pre-pandemic average, squeezing margins for farmers with limited access to credit. Agricultural development specialists argue that investment in local seed systems, soil health, and cooperative purchasing models offers a more durable path to food security than dependency on global commodity markets.
Policymakers face pressure to act on multiple fronts simultaneously: supporting domestic production, maintaining trade openness to buffer local shocks, and managing strategic reserves without distorting markets. The report’s authors recommend a coordinated multilateral approach to reserve management and early-warning data sharing, noting that the tools exist but political will has repeatedly fallen short of what the scale of the challenge demands.