The FDA advises consumers not to eat the recalled products. Traces of Cesium-137 are widespread in the environment including food, soil and air. The primary health risk is through long-term, repeated low-dose exposure, which can increase the risk of cancer.

For so many parents, frozen shrimp is a weeknight lifesaver—quick to cook, affordable, and something kids will actually eat without a fight. But this week, Walmart pulled certain shrimp from its shelves in 13 states after the FDA raised concerns about potential radioactive contamination.

The recalled frozen shrimp were sent to 13 different states and were shipped into the country through four different ports.