A three-year-old boy in Foshan developed cyanosis and required ICU admission after regularly eating overnight raw rice and vegetables. Doctors diagnosed nitrite poisoning caused by bacterial conversion in improperly stored food.

Social Context

Nitrite poisoning from reheated or aged plant-based foods is a recurring public health issue in China, regulated under the Food Safety Law (2015) and GB 2762–2022 contaminant limits. Rural and low-income households face higher risk due to limited refrigeration access and traditional preservation practices.

Safety Tip

Avoid feeding children overnight cooked leafy greens or starches; store leftovers below 4°C and reheat to ≥70°C for at least 2 minutes to degrade nitrites.