Scientists at UC San Francisco and Harvard University have shown for the first time that cooking food fundamentally alters the microbiomes of both mice and humans, a finding with implications both for optimizing our microbial health and for understanding how cooking may have altered the evolution of the our microbiomes during human prehistory.

Cooking food alters the microbiome: Raw vs. cooked diets have distinct effects on both mouse and human gut microbes — ScienceDaily