"Lettuce Storm" in the US: Unexpected Winners and the Impact on Prices

What began as an outbreak of an intestinal illness linked to lettuce has quickly turned into a crisis felt across the American food market. Even after health officials in Michigan informed consumers that lettuce could be returned to shopping carts, the fear is still felt in stores, restaurants, and markets – and is changing the way Americans buy fresh produce. The outbreak, which spread to 15 states, hit Michigan the hardest. An investigation by the U.S. Food and Drug Administration (FDA) linked it to iceberg lettuce originating from Taylor Farms operations in central Mexico. In Michigan, more than 12,000 cases related to the outbreak were reported, including two deaths.

The fear is already translating into economic data. According to market research firm NielsenIQ, U.S. sales of fresh lettuce in the week ending July 18 fell by 9% compared to the previous week. However, the damage is not limited to lettuce: some stores also recorded a decline in sales of raspberries, blueberries, and strawberries after consumers were exposed to rumors online regarding the extent of the contamination.

From supermarkets to restaurants

The crisis is also seeping into the restaurant world. The Taco Bell chain, which was linked to the outbreak, suffered a significant drop in customer traffic. According to research firm Placer.ai, traffic at the chain's U.S. locations was more than 11% lower on August 1 compared to the same period last year. The salad chain Sweetgreen is also feeling the impact. The company announced that it expects a 7% to 8% decline in same-store sales during the year, citing the outbreak as one of the factors for the expected decline.

But alongside those affected, there are also those who are benefiting from the change in consumption habits. Farmers' markets across the U.S. are reporting an opposite trend. Consumers who are wary of produce coming from large supply chains are turning instead to local suppliers and farmers who sell directly to the public. At the Union Square Greenmarket in New York, vendors said that sales have actually improved. Samer Saleh, who operates a Halal Pastures stand, said:

"Right now, it seems that people prefer food that is grown locally."

According to Darlene Wolnik, program director for the Farmers Market Coalition, market managers across the country reported a 15% to 30% jump in sales as concerns over foodborne illnesses grew.

And what will happen to prices?

The shift to local produce may also affect prices. When some consumers reduce their purchases of lettuce and products linked to the outbreak, the demand for certain produce drops. At the same time, local farmers are enjoying higher demand and sometimes struggle to provide the required quantity. At Argus Farm Stop in Ann Arbor, Michigan, which receives produce directly from farms in the area, they are already feeling the change. Marketing manager Alex Bloom said that local farmers are "struggling to keep up with demand," and added: "The lettuce is just flying off the shelves." Thus, a crisis that began with one product is turning into a broader phenomenon: on one hand, a decrease in demand for produce that was perceived as dangerous, and on the other, a strengthening of demand for local food that is perceived by consumers as safer.