A deluge of research has painted a picture of our world being drowned in tiny, inescapable microplastics. But as it turns out, the same fume signatures for the materials used in microplastics like polyethylene can also be produced from the fats present in human tissue. “I do think it is a problem in the entire field,” Rauert added to The Guardian. “We do have plastics in us — I think that is safe to assume,” Materić said. “But real hard proof on how much is yet to come.”More on microplastics: Doctors Find Evidence Microplastics Are Clogging Arteries, Leading to Heart Attacks and Strokes