Japan’s Food Self-Sufficiency Falls to 37%: Can Tokyo Secure Its Food Future Amid Global Risks?

Japan’s food self-sufficiency rate falling to 37% highlights its growing vulnerability to global supply disruptions amid heavy import dependence and a shrinking agricultural workforce. Reaching the 45% target by fiscal 2030 will require policymakers to balance stronger domestic production with food affordability, farm sustainability and the benefits of international trade.

Japan's food self-sufficiency ratio falling to 37% is more than a one-percentage-point annual decline. It highlights a deeper vulnerability for a country that relies heavily on overseas supplies for important parts of its food system while confronting an ageing agricultural workforce, shrinking farmland and changing dietary habits.

The calorie-based ratio fell from 38% in the fiscal year ended March 31 and remains well below the government's 45% target for fiscal 2030, according to the Ministry of Agriculture, Forestry and Fisheries. Lower rice consumption and increased private-sector stockpiles contributed to the decline.

The immediate change may appear modest, but the broader concern is persistent: Japan's self-sufficiency ratio has remained below 40% for more than a decade. Against a backdrop of geopolitical tensions and potential disruptions to international trade, the question is increasingly whether Japan can make its food system more resilient without imposing high costs on consumers, businesses and taxpayers.

37% and Falling: Why Japan Should Be Concerned

The 37% figure measures food self-sufficiency on a calorie basis, the proportion of calories consumed that can be supplied through domestic production. It should not be interpreted as meaning Japan imports exactly 63% of all food.

Indeed, Japan's self-sufficiency rate measured by production value increased by two percentage points to 66%, helped by higher domestic prices for rice and livestock products. The contrast demonstrates how differently Japan's food system can appear depending on the measure used.

Still, the calorie-based figure matters because Japan remains heavily dependent on imports for crops such as wheat and soybeans. That exposes the country to developments beyond its control, including disruptions to agricultural production, international shipping and commodity markets.

The Russia-Ukraine war and conflict in the Middle East have reinforced concerns over the vulnerability of global supply chains. They do not necessarily explain Japan's latest decline, but they illustrate why dependence on international supplies can become a strategic concern during periods of geopolitical instability.

For Japan, food security is therefore becoming about resilience as much as agricultural production.

A Tougher Test for Policymakers

The fall to 37% increases pressure on policymakers attempting to reach the 45% target by fiscal 2030. Closing an eight-percentage-point gap will require addressing problems that extend well beyond the amount of land planted with particular crops.

Japan plans to expand farmland used for wheat and soybeans, according to Toshiaki Sasaki, planning director at the ministry's food security office. But increasing acreage will be difficult while the agricultural sector faces an ageing workforce, a shortage of successors and shrinking farmland.

That creates a policy dilemma. Increasing domestic production could reduce exposure to certain external disruptions, but maintaining production may require subsidies, investment or other government support.

Policymakers must therefore balance food security against economic efficiency. Imports may be more competitive for some commodities under normal market conditions, while domestic production provides strategic value when international supplies are disrupted.

The government must decide not simply how to increase a percentage, but which domestic agricultural capabilities are important enough to preserve or expand and how much public support that objective justifies.

Farmers, Consumers and Businesses Face Different Consequences

Farmers could benefit from policies encouraging greater domestic production, particularly if the government provides support for wheat, soybeans and other import-dependent commodities. Yet financial incentives alone may not solve agriculture's demographic problem.

Without enough younger farmers and successors, increasing acreage sustainably could prove difficult. Policies aimed at food security may consequently need to address labour, farm succession and land use alongside production targets.

For consumers, greater domestic production could protect against some international supply disruptions, but it does not automatically mean cheaper food. Domestic production costs, commodity prices and other factors can affect retail prices.

The available information does not establish whether reaching the 45% target would raise or lower consumer food costs, making this an important area for further scrutiny.

Food processors, livestock producers and retailers are also affected. Businesses dependent on imported agricultural commodities need reliable and competitively priced supplies. A shift toward domestic sourcing could improve resilience, but companies would still have to consider whether local suppliers can provide the required quantity, quality and price.

Japan's dietary transformation adds another complication. Consumers have gradually shifted away from rice toward meat and foods cooked with oil. Because Japan is more dependent on imported commodities associated with some of these consumption patterns, changing diets have contributed to pressure on the self-sufficiency ratio.

This means agricultural policy cannot be separated from what Japanese consumers actually choose to eat.

The Bigger Question: Can Japan Build a More Resilient Food System?

Japan's challenge is ultimately bigger than achieving a numerical target of 45%.

Food security does not require every product to be produced domestically. Resilience can also come from diversified import sources, adequate stockpiles, reliable logistics and maintaining sufficient domestic production to respond when international markets are disrupted.

Japan therefore needs to balance the benefits of international agricultural trade with the strategic value of domestic capacity.

The agriculture ministry plans to review progress toward its fiscal 2030 target and consider additional measures, according to Sasaki. That review will be an important indication of whether the government believes existing policies are sufficient.

What happens next will matter to different stakeholders for different reasons. Farmers will watch for production incentives and measures addressing succession and farmland. Food companies will focus on sourcing costs and supply reliability. Consumers will be concerned about affordability, while policymakers must determine how much additional domestic capacity Japan realistically needs.

The 37% figure should therefore be seen less as an isolated annual statistic and more as a measure of a structural challenge. Japan must strengthen food resilience while dealing simultaneously with demographic pressure on agriculture, changing diets and dependence on international markets. Whether it can reconcile those forces will determine whether the 45% target becomes achievable, and, more importantly, whether the country is better prepared for the next disruption to global food supplies.