24th April 2026
At first glance, a war in the Middle East might seem distant from the everyday realities of British households. Yet the latest analysis from the London School of Economics reveals just how tightly connected global conflict and domestic living costs have become.
The impact of the Iran war on the UK food sector is not dramatic in the sense of empty shelves or visible shortages. Instead, it is something more subtle and arguably more consequential: a steady transmission of rising costs through the economic system, from energy markets to supermarket prices.
At the centre of this chain reaction lies the Strait of Hormuz, one of the world’s most critical energy chokepoints. A significant share of global oil and liquefied natural gas passes through this narrow corridor, making it highly sensitive to geopolitical disruption.
When conflict affects this route, the immediate consequence is a rise in global energy prices. These increases are not contained within the energy sector; they ripple outward, embedding themselves in almost every stage of the food supply chain.
Food production, often assumed to be a purely agricultural activity, is in reality deeply energy-dependent. Modern farming relies on fuel for machinery, transport, and processing, while fertilisers—essential for maintaining crop yields—are themselves energy-intensive to produce. When gas prices rise, fertiliser costs follow. When oil prices climb, so too do the costs of transporting goods from farms to processors, and from warehouses to supermarket shelves. The result is a layered cost structure in which each stage adds pressure to the final price paid by consumers.
What makes this dynamic particularly significant is that it does not require a breakdown in supply to have real effects. The UK is not running out of food, nor is it likely to in the foreseeable future. Instead, the system continues to function, but at a higher cost. This distinction is crucial. It shifts the narrative away from scarcity and towards affordability. Food remains available, but becomes progressively more expensive, especially for households already under financial strain.
The LSE analysis highlights how this form of economic transmission exposes a deeper vulnerability within the UK food system: its reliance on global energy markets. Even when food itself is produced domestically, the inputs required to grow, process, and distribute it are often tied to international energy prices. This creates a form of indirect dependency, where geopolitical events thousands of miles away can influence the cost of basic goods at home.
There is also an important temporal dimension to these effects. Energy price shocks do not always translate immediately into food price increases. Instead, they tend to filter through gradually, as existing contracts expire, new costs are absorbed, and businesses adjust pricing strategies.
This lag can create the illusion of stability in the short term, only for pressures to emerge more clearly over time. It also means that even if geopolitical tensions ease, the after-effects can persist, keeping prices elevated for longer than expected.
In this sense, the Iran war is less a sudden shock than a catalyst for ongoing inflationary pressure within the food sector. It reinforces existing trends rather than creating entirely new ones, amplifying the cost challenges that producers, retailers, and consumers are already facing. For businesses, this environment demands careful cost management and pricing decisions. For consumers, it translates into a gradual erosion of purchasing power.
Ultimately, the story is not one of crisis, but of connection. The UK food system is not isolated from global events; it is deeply embedded within them.
The Iran war illustrates how modern economies transmit shocks across sectors and borders, turning geopolitical tension into everyday economic reality. The consequence is not empty shelves, but something quieter and more persistent: a rising cost of living shaped by forces far beyond the checkout aisle.
“What impact is the Iran war having on the British food sector?”
Cesar Revoredo-Giha is senior economist and food marketing research team leader, and professor at the Rural Economy, Environment and Society Department at Scotland’s Rural College (SRUC).
Montserrat Costa-Font is Programme Director for the MSc in food security at the University of Edinburgh, and food supply chain economist within the Food Marketing Research Team at Scotland’s Rural College (SRUC).
Read the full LSE Blog article HERE