Global food markets moved higher again in March, with the United Nations Food and Agriculture Organization reporting the strongest monthly level since last September. The advance was not dramatic enough to suggest an immediate food emergency, but it added to evidence that the war-driven energy shock is beginning to filter into agricultural commodities in a more visible way.

The significance of the latest rise lies less in the size of the monthly increase than in what could come next. For now, strong cereal supplies are preventing a sharper jump. But the FAO is warning that if the conflict lasts much longer, farmers may start changing planting decisions and cutting back on costly inputs such as fertilizer, a shift that could tighten supply and keep food prices under pressure well into next year.

That makes March an early warning rather than an endpoint. Energy markets have already been hit hard. The next question is how deeply that shock spreads into farming, food processing, and household grocery bills across the world.

March brings the highest reading in six months

The FAO Food Price Index rose 2.4% from February, reaching its highest point since September. Compared with the same month a year earlier, the index was 1% higher. Even after that increase, it remained far below the extreme levels seen in March 2022, when the war in Ukraine pushed global food prices to a historic peak.

That comparison matters because it shows the current situation has not yet become a repeat of the earlier crisis. Still, the direction is clearly unfavorable. A steady climb in food prices, coming on top of already elevated energy costs, raises the risk that inflation pressure will become harder to contain in both advanced and developing economies.

The FAO said the recent increases have so far been driven mainly by higher oil prices, while abundant grain availability has helped soften the blow. That cushion, however, may weaken if the conflict persists and production costs stay elevated.

Fertilizer may become the real turning point

The agency’s chief concern is not only what food costs today, but how farmers respond to what it costs to grow crops tomorrow. If fertilizer and fuel remain expensive for more than 40 days, the FAO says producers may start reducing fertilizer use, planting fewer acres, or choosing crops that are less dependent on intensive inputs.

Those choices could have lasting consequences. Lower fertilizer use generally means weaker yields, while reduced planting narrows future supply. Switching crops may protect growers from immediate cost pressure, but it can also alter global balances in wheat, maize, oilseeds, and other key products.

This is why the agency is focusing so closely on input costs. The current rise in food prices may still look moderate, but if farmers begin adjusting production plans, the effect would extend beyond a temporary spike and into the structure of supply for the rest of this year and into 2027.

Wheat, oils and sugar are showing the most strain

The strongest pressure in March came from commodities most exposed to energy and fertilizer dynamics. Cereals rose 1.5% overall, with wheat prices jumping 4.3% on worsening crop expectations in the United States and the prospect of lower sowing in Australia because of higher fertilizer costs.

Vegetable oils climbed 5.1%, marking a third consecutive monthly increase. Palm, soy, sunflower, and rapeseed oil all became more expensive as higher energy prices supported stronger biofuel expectations. Palm oil reached its highest level since the middle of 2022, underlining how quickly fuel markets can influence food markets when agricultural products are tied to energy demand.

Sugar recorded one of the sharpest increases, surging 7.2% to its highest level since October 2025. The main driver was Brazil, where stronger crude prices are expected to encourage mills to divert more sugarcane toward ethanol instead of sugar exports. That mechanism is another reminder that the conflict is affecting food not only through farming costs, but also through competition between food and fuel uses.

Not every category is moving the same way

Despite the broad upward pressure, some segments remain relatively contained. Maize prices rose only slightly because strong global availability offset worries about fertilizer costs and stronger ethanol demand. Rice prices moved in the opposite direction, falling 3% as harvest timing and softer import demand weighed on the market.

Meat prices increased 1%, supported by firmer pig meat prices in the European Union and higher bovine prices in Brazil, while poultry prices edged lower. These mixed moves suggest that the current food inflation story is still uneven rather than universal. Some markets are being pulled higher by energy and input concerns, while others remain shaped more by seasonal supply and trade flows.

That unevenness may not last. If the conflict extends and the cost shock begins to reshape planting and production decisions on a broader scale, food inflation could spread more widely across categories. For now, the world still has enough supply to avoid a sharper jump. But the March data shows that the line between an energy crisis and a food inflation problem is already starting to blur.