When Healthy Foods Make You Sick
July 28, 2026
“What every consumer should know about the latest lettuce outbreak.”
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Fresh salads have long been a symbol of healthy eating, yet the current multistate outbreak in the United States of cyclosporiasis serves as a reminder that even nutritious foods can occasionally carry unexpected risks. Cyclosporiasis is an intestinal illness caused by the microscopic parasite Cyclospora cayetanensis, which is typically spread through contaminated food or water rather than from person to person. According to the U.S. Food and Drug Administration (FDA) and the Centers for Disease Control and Prevention (CDC), investigators are currently tracing an outbreak linked to recalled shredded iceberg lettuce sourced from central Mexico. While the investigation remains ongoing, public health officials emphasize that consumers should avoid only the recalled products—not fresh produce in general.
Leafy greens are particularly vulnerable because they are often eaten raw and have many folds and crevices where contamination can persist. Washing produce under cool running water is still an important step, but it is not a guarantee against Cyclospora. According to the FDA, the parasite can be difficult to remove completely by washing alone, and experts do not recommend using soap or commercial produce washes. Instead, rinse produce thoroughly, discard damaged outer leaves, refrigerate perishable items promptly, and stay informed about recalls. Purchasing fruits and vegetables from reputable retailers and suppliers with strong food safety practices also helps reduce risk, as established companies typically maintain rigorous traceability and quality-control systems.
The good news is that foodborne illness remains relatively uncommon compared with the billions of servings of fresh produce consumed each year, and America’s food safety system is designed to identify problems quickly and remove affected products from the marketplace. Outbreaks such as this one also demonstrate why government surveillance, product traceability, and voluntary recalls are essential components of protecting public health. Healthy eating should remain a priority, but so should informed purchasing and proper food handling. A little awareness—not unnecessary fear—is one of the most effective ingredients in keeping your kitchen, and your family, safe.
