Microplastics in Cheese: Up to 45 Times More Than Bottled Water

A new scientific study reveals alarmingly high concentrations of microplastics in dairy products, with cheese showing the highest levels. According to the research, published in npj Science of Food, mature cheeses contain an average of 1,857 microplastic particles per kilogram, 45 times greater than what is found in a plastic bottle of water.

High concentrations were also found in fresh cheeses (1,280 particles/kg) and milk (350 particles/kg). Researchers from the Universities of Dublin and Padua found that microplastic intrusion occurs during the processing and condensation of cheeses.

Sources of microplastics include synthetic fibers from lab coats, gloves, hairnets, packaging damage, and production machinery. Previous studies had already shown the presence of microplastics in fresh milk (190 particles/liter).

Microplastics can permeate cell membranes and reach the circulatory system, and have even been detected in breast milk. Exposure to them poses health risks, as they contain toxic substances that can cause damage to vital organs and may be associated with cardiovascular diseases and bowel cancer.

Experts are calling for systematic investigation of contamination sources and stricter regulations in the food industry to protect public health.