Science & Health Are we 90% bacteria? March 2, 2026 by Myaya | Leave a Comment No, the common assertion that humans are 90% bacteria is a myth. While microbes, including bacteria, are incredibly abundant in and on our bodies, they do not make up 90% of our cellular makeup. In fact, recent scientific estimates suggest that bacteria constitute closer to 1% of our total body mass. Unpacking the "90% Bacteria" […] Read more ยป