When a maritime chokepoint hits food supply chains: why the Strait of Hormuz matters for planners

Tim van Beusekom

Last updated: 27 May 2026|3 min

Table of contents

When a maritime chokepoint hits food supply chains: why the Strait of Hormuz matters for planners
Fertilisers: an upstream constraint shaping future supply
Why the real impact arrives later
What this means for demand planning and inventory decisions in food
From disruption to resilient planning in the food sector

Overview

The critical importance of the Strait of Hormuz extends beyond energy markets, as it directly affects food supply chains by disrupting the flow of fertilisers and energy. This poses significant risks to availability, costs and demand patterns in the food sector. This situation highlights the need for forward-looking and resilient planning to mitigate long-term impacts.mportance of the Strait of Hormuz extends beyond energy markets, as it directly affects food supply chains by disrupting the flow of fertilisers and energy. This poses significant risks to availability, costs and demand patterns in the food sector.

For food planners, disruption doesn’t start when shelves are empty, it starts when planning assumptions quietly stop being true.

Longer lead times, rising input costs, less reliable suppliers, limited substitution options and pressure on safety stock all begin upstream, often before demand signals show any change.

A prolonged disruption in the Strait of Hormuz is exactly this type of risk.

While the strait is best known for its role in energy markets, its role in food supply chains is often underestimated. Recent disruptions have already caused shipping activity through Hormuz to collapse by more than 90%, significantly restricting the movement of both energy products and fertilisers.

For food planners, this is not just a geopolitical story, it’s a direct input risk with long-term consequences for availability, cost and demand patterns.

Fertilisers: an upstream constraint shaping future supply

Modern food supply chains are structurally dependent on fertilisers. Nitrogen-based products such as urea and ammonia underpin global crop yields, and alarge share of global fertiliser trade originates in or moves through the Gulf region.

When flows through the strait are disrupted, fertiliser markets react quickly. Natural gas, a key input for fertiliser production and another major flow through Hormuz, becomes more expensive. Combined with shipment delays, this pushes fertiliser prices higher.

For agricultural producers, this translates into difficult decisions. Higher input prices often lead to reduced fertiliser application, which directly affects yields. For food manufacturers and retailers further downstream, this creates a delayed but material supply risk: less raw material availability and higher procurement costs in future seasons.

From a planning perspective, this is a classic example of an upstream constraint that standard demand signals do not immediately capture.

Why the real impact arrives later

One of the biggest challenges for food supply chain teams is timing. Food inflation linked to fertilisers does not appear instantly on the P&L or on shelf prices. Instead, it works its way through the system, not immediately but over time.

Initial buffers such as existing stocks, contracts already agreed and long crop cycles can mask the impact for months. However, FAO (Food and Agriculture Organization of the United Nations) has warned that once planting and harvesting cycles reflect reduced fertiliser use and higher input costs, pressure on agricultural commodities and food prices intensifies rapidly.

Forecasts based purely on historical demand can appear stable just as underlying supply risks are increasing. By the time inflation becomes visible in demand patterns, businesses may already be locked into sub‑optimal inventory positions or pricing decisions.

At the same time, higher energy prices amplify the effect. Increased fuel costs raise expenses across farming, processing, refrigeration and transport, further eroding margins and increasing supply chain volatility.

What this means for demand planning and inventory decisions in food

A disruption like the Strait of Hormuz exposes several key pain points common in the food sector:

Forecast accuracy under volatility: demand shifts appear late, after supply-side changes.
Risk of over- or under-stocking: longer and less reliable lead times undermine safety stock models.
Margin pressure: rising input and logistics costs are difficult to pass hrough quickly.
Limited visibility upstream: fertilisers and energy sit far outside the usual scope of food demand planning, yet they materially shape future supply.

This is where forward-looking scenario planning becomes essential. Instead of assuming rapid normalisation, planners increasingly need to model prolonged disruption scenarios, stress-testing demand, supply and inventory policies against higher costs and constrained availability.

From disruption to resilient planning in the food sector

The Strait of Hormuz is a reminder that food supply chains are are connected to energy markets and geopolitics. A risk event thousands of kilometres away can quickly undermine service levels, profitability and consumer affordability closer to home.

For food supply chain teams, the challenge is not to predict geopolitical events, but to translate external uncertainty into better planning decisions. Organisations that are able to look beyond short‑term demand signals, test scenarios and align inventory, supply and service objectives are better placed to absorb shocks without compromising performance.

The challenge for planners is not predicting disruptions, but translating uncertainty into better decisions.

That requires a more forward-looking and integrated approach, including:

Scenario planning for prolonged disruption.
Visibility into supply-side constraints.
Active management of lead times and supplier assumptions.
Simulation of inventory policies under stress.
Alignment between demand, supply and service objectives.

Slimstock supports food manufacturers and retailers in doing exactly this. By enabling scenario planning, improving visibility across supply risks and strengthening planning parameters, teams can respond earlier, before disruption becomes visible in demand. You can explore how Slimstock works with the food industry in this link.