Although there’s been no confirmation of radiation risk in food purchased at Walmart stores, the FDA said that it has detected unsafe levels of cesium-137 contamination at four U.S. ports. This contamination likely suggests that the shrimp was packaged in unsanitary conditions.

Walmart has issued a recall on frozen shrimp after the FDA found evidence that some of it has been contaminated by radiation. What’s the Problem With Walmart Shrimp? According to Forbes, the Food and Drug Administration issued a warning that some Great Value brand frozen shrimp sold at Walmart could be contaminated with radioactive isotope

The US Food and Drug Administration on Tuesday urged the public not to eat certain bags of frozen raw shrimp sold at Walmart, citing concerns about unsanitary conditions and radioactive contamination found in shipments from the same supplier.