Microplastics found in human tissue raise kitchen safety concerns

Recent studies and medical discussions have highlighted the presence of micro- and nanoplastics within human biological samples. A 2025 review published in Cureus indicates that microparticles, ranging from 1 micrometer to 5 millimeters, have been detected in human blood, placental tissue, and gastrointestinal samples.

Concerns regarding kitchen safety have emerged specifically regarding plastic cutting boards. Research suggests that the mechanical action of cutting with a knife can cause microscopic plastic particles to transfer into food. While animal studies show measurable increases in microparticle release during food preparation, medical oncologists note that a direct causal link to cancer in humans has not yet been established. Experts suggest a pragmatic approach, such as using wooden boards or other alternatives to minimize exposure.