How Conflict in Iran Could Impact Your Weekly Grocery Bill
At first glance, a war in the Gulf region might seem disconnected from the British weekly supermarket shop. Iran is not a major source of bananas for the UK, and strawberries are not typically shipped through the Strait of Hormuz. Most items filling UK supermarket shelves are either grown domestically or imported from Europe, Africa, America, Asia, and Australasia, rather than the Middle East. However, when tensions flare in that region, the prices of basic groceries can begin to fluctuate. This is not because Britain suddenly faces food shortages, but because food production and distribution are inextricably linked to energy costs.
Food Security Challenges in the Gulf States
For those seeking a straightforward narrative about shortages, evidence indicates that food security is most at risk in the Gulf states themselves. Iran and Saudi Arabia heavily depend on imported staples like grain and wheat, much of which passes through the Strait of Hormuz and ports such as Jebel Ali. Smaller nations like Kuwait and Bahrain are particularly vulnerable, as nearly all their food arrives by sea via Hormuz, with limited alternative routes. Disruption to these shipping lanes would immediately threaten food imports to these areas.
Europe generally does not experience outright shortages solely due to Middle East conflicts, but it is not immune to the effects of war. The UK is likely to feel the impact through price increases and supply chain pressures.
The UK's Food Import Reliance and Resilience
The UK is a significant food importer. According to the latest statistics from Defra, the value of UK imports of "food, feed and drink" reached £64.1 billion in 2024. The source of these imports is crucial: government food security analysis highlights that the EU remains the primary source of UK food and drink imports and is "essential to the UK's food security." Most high-volume, everyday items that keep refrigerators stocked—such as dairy, meat, fruits, vegetables, and ambient staples—are sourced domestically or through European supply chains.
The UK Food Security Report is candid about the resilience demonstrated during recent shocks, including the aftermath of the Ukraine war, which caused shortages of wheat, maize, and sunflower oil. It states: "At no point in the last three years has the UK population faced shortages of food items for a sustained period."
The Critical Role of Energy in Food Pricing
So why does the Middle East still matter for UK shoppers? While Britain does not rely on the region for produce like tomatoes, it depends on it, and the surrounding sea lanes, for something that influences almost every tomato's final price: energy. The real risk lies in energy costs, not edible imports.
The Strait of Hormuz is one of the world's key energy checkpoints. In 2024, the oil flowing through it averaged about 20 percent of global petroleum liquids consumption, according to the US Energy Information Administration. The same agency noted that roughly 20 percent of global liquefied natural gas trade transited the strait, primarily from Qatar.
Even if the UK sources most of its food from the EU, the costs of moving, chilling, processing, and packaging that food are heavily influenced by global oil and gas markets. When these markets experience volatility, food costs tend to follow suit.
Current Economic Indicators and Historical Precedents
Economists are closely monitoring this channel. Reuters reported this week that UK grocery inflation has edged up to 4.3 percent for the four weeks ending 22 February 2026, reversing a recent dip. The Bank of England is watching food prices closely due to their impact on public inflation expectations. This unexpected increase has been linked to the broader jump in oil and energy prices amid escalating tensions.
Unlike the Ukraine war, this situation is not about a single ingredient becoming unavailable. Instead, it concerns the cost base for the entire food system.
How Energy Shocks Propagate Through the Food Chain
Energy shocks affect the food chain in several unglamorous but unavoidable ways. Farming itself is heavily dependent on fuel: tractors, harvesters, and other machinery run on diesel, while many crops rely on heated glasshouses and other energy-intensive inputs. Once food leaves the field, the processing stage adds further exposure to energy costs. Bakeries, dairies, and food factories all require large amounts of electricity and gas to operate ovens, pasteurisation systems, and production lines.
Transport represents another pressure point. Moving food from farms to warehouses, from ports to distribution centres, and finally to supermarkets relies on lorries and shipping that are sensitive to fuel prices. The cold chain—refrigeration needed to keep food safe from depot to shop floor—is also highly energy-intensive. Even packaging is affected, as much modern food packaging is derived from petrochemicals, tying its cost back to oil prices.
Retailers can absorb some costs temporarily. Shoppers might trade down to cheaper alternatives, and promotions may shift. However, when energy prices remain elevated for an extended period, customers feel the impact at the checkout, making it harder to dismiss food security as "someone else's problem."
Broader Economic Implications
The macro-economic backdrop is also significant. The Office for Budget Responsibility has warned that the Iran war could have a "very significant" impact on the UK economy, primarily through higher energy prices and wider market disruption. If energy-led inflation pressures increase, central banks may become more cautious about cutting interest rates, keeping borrowing costs higher for businesses, including food producers and retailers.
Historical Context and Future Outlook
History offers insights into how shocks in global energy markets can ripple into grocery prices. The most notable example is the oil crisis of the 1970s, when the 1973-74 embargo sent oil prices soaring and contributed to a broader surge in inflation, including food costs. This remains a reference point for economists, illustrating how quickly rising energy costs can spread through the wider economy when fuel becomes scarce and expensive.
Later geopolitical conflicts have produced similar dynamics, though often on a smaller scale. During the Gulf War in 1990, oil prices jumped sharply after Iraq's invasion of Kuwait, but the spike proved relatively short-lived. This episode demonstrated that while energy shocks can be powerful, their lasting impact depends heavily on the duration of the disruption.
The Russian invasion of Ukraine in 2022 underscored how events far beyond Britain's borders can shape what shoppers pay at the supermarket. ONS analysis shows UK food and non-alcoholic beverage inflation rose to 19.1 percent in the year to March 2023, the fastest pace in over 40 years. The ONS explicitly linked that surge to supply disruptions over the previous 18 months, including the invasion's impact on global grains, fertilisers, and European energy prices. This period also highlights the distinction between availability and affordability: prices soared, but the food system largely continued to function.
What This Means for UK Shoppers Today
Whether shoppers ultimately feel the impact in their trolleys will largely depend on how long the disruption persists. If oil and gas prices remain elevated for weeks or months rather than days, the pressure on the food supply chain becomes harder to ignore. Retailers may absorb some of these pressures temporarily, but if costs continue to rise, their ability to shield shoppers becomes increasingly limited. Conversely, if tensions ease and energy markets stabilise, the effect on supermarket prices may prove relatively modest.
It is tempting—and reassuring—to look at a map and note that Britain's food supply is diversified, with strong European sourcing. However, tensions in the Strait of Hormuz serve as a reminder of how quickly an event thousands of miles away can nudge the cost of living in the wrong direction. This is not a story about imminent empty shelves, but it is a story about how an oil and gas shock risks making dinner more expensive once again.
