From the article:

“The connection between TMAO and cardiovascular disease has tended to focus the conversation on how animal-based diets cause negative health consequences,” said Veronika Kivenson, the study’s lead author and a postdoctoral fellow in the OSU College of Science. “But in analyzing data from foundational gut microbiome studies, we uncovered evidence that one type of bacteria associated with meat consumption can take the TMA, as well as precursors to TMA, and metabolize them without producing any TMAO. That means those bacteria are in effect severing a key link in the cardiovascular disease chain.”