Thin margins are a warning sign for a food system under strain

A system facing sustained pressure

The UK food system is operating under sustained pressure, as evidenced by IGD’s Food Pound analysis. Despite elevated food prices, profitability across much of the supply chain remains low, leaving little capacity to absorb shocks or invest for the future.

Across nine everyday food and grocery products, IGD’s analysis shows that margins remain structurally thin across much of the supply chain. This leaves little headroom to absorb shocks, invest in resilience or fund productivity improvements. Thin margins are not a temporary squeeze; they are a persistent feature of the system, and they should be understood as a warning sign rather than a footnote.

What the Food Pound evidence shows

IGD’s Food Pound analysis shows that the entire supply chain generated just 29p of profit from a £20.24 illustrative basket of nine everyday food and grocery products, around 1.5% overall. This analysis reflects conditions as of January 2025, before additional cost pressures emerged later in 2025 and before the escalation of the conflict in the Middle East. As a result, it underlines that recent food inflation has been overwhelmingly cost‑driven rather than profit‑led, and that margins were already exceptionally thin before further energy, input and geopolitical pressures intensified.

Low profitability is not confined to one part of the system. From farming through manufacturing, logistics and retail, margins remain tight, limiting the system’s ability to absorb volatility or respond to disruption. When costs rise, there is little buffer.

A fragile set of economics

Retailers are increasingly reliant on non-food income streams such as retail media to sustain overall profitability, as the core economics of grocery retailing remain fragile. That should give us pause. When the affordability of food increasingly depends on income generated beyond the core grocery model, it underlines how exposed the system has become. Food is not a discretionary category. A system that depends on cross-subsidy from outside grocery retailing to deliver affordable food is inherently fragile, particularly in an environment defined by repeated shocks rather than one-off crises. Food Pound analysis shows that much of the supply chain, especially farming and food manufacturing, has far fewer levers to pull. Unlike retailers, these businesses must recover costs and generate returns primarily through their core activity, at a time when margins are already structurally thin and input costs volatile.

Exposure to shock is rising, not falling

Recent geopolitical developments reinforce this vulnerability. Energy, fertiliser, and freight costs can move rapidly in response to global events, feeding through into food prices and retailer costs with little delay.

IGD has set out in detail how the conflict in the Middle East is transmitting shock through energy, fertiliser, and freight markets, and what this means for near‑term food inflation and food system resilience. Rather than restating that analysis here, the focus is on what persistent volatility means for a food system already operating with limited financial headroom. See: IGD’s article Middle East Briefing: Resilience now critical.

Retailers facing sustained cost pressure have few options. Absorbing costs erodes already thin margins. Passing costs on risks further damaging affordability and consumer trust. Over time, this weakens the system’s ability to cope with disruption rather than strengthening it.

Margins matter, but they are not the whole picture

Thin margins are clearly a challenge. But focusing on margins alone risks missing the wider issue. We cannot put businesses on a more stable footing without deeper, strategic thinking about how the food system can be made fit for the future.

Sustained low profitability discourages investment - in energy efficiency, automation, skills, innovation, and domestic capacity. Over time, that weakens the resilience of the food system and makes it harder to respond to future shocks, whether from geopolitics, climate or labour markets. Ultimately, it is consumers - particularly lower‑income households - who bear the cost when a system lacks the capacity to adapt.

Rising expectations, limited capacity

At the same time, expectations placed on the food system are rising. Government and society rightly want healthier diets, lower environmental impact, and more sustainable production. But the Food Pound evidence shows that structurally thin margins across the supply chain limit the system’s capacity to invest at the scale required to deliver these outcomes consistently.

Thin margins constrain the ability of businesses to respond to these demands. Without sufficient returns, investment decisions are delayed or deprioritised, even where they would deliver long‑term benefits for productivity, resilience, and sustainability.

The route forward: Productivity, not price

Profits do need to recover - but not at the public’s expense. The route forward is not higher prices for consumers, but a renewed focus on taking cost out of the system and improving productivity across the supply chain.

Energy is the most obvious place to start. From fertiliser production and glasshouse growing to refrigeration, transport and cold storage, food is an inherently energy‑intensive system, yet it is not consistently recognised as such in policy. This matters because prolonged exposure to volatile energy markets feeds directly into costs across the supply chain, further eroding already thin margins. Improving efficiency, investing in alternative energy and infrastructure, and ensuring policy frameworks reflect the food system’s energy intensity would strengthen resilience and support long‑term investment.

Labour is another pressure point. With workforce availability constrained and costs rising, the question is not whether labour becomes cheaper again, but whether technology can make workers more productive. Automation, data, and better system design all have a role to play, but they require upfront investment and confidence in long‑term returns.

IGD’s Food and drink workforce: a quiet crisis building? report explores in more detail how labour shortages, skills gaps and rising employment costs are increasingly constraining productivity and resilience across the food system.

Moving beyond the margins debate

The Food Pound evidence is clear: thin margins highlight the fragility of the current system. They are a warning sign of a food system under sustained strain, trying to deliver affordability, health, sustainability, and resilience with too little capacity to invest.

If we want a food system that is affordable for consumers, fair for businesses and secure for the future, we need to move beyond a narrow focus on margins and address the structural challenges beneath them.