The TMAO point is weird, considering that many fish have many times more TMAO than red meat, yet fish are not associated with increased cardiovascular disease.
Also, red meat is not associated with higher blood glucose levels. In my own case, it is strongly associated with decreased inflammation.
“Interestingly, we identified three major pathways that help explain the links between red and processed meat and cardiovascular disease—microbiome-related metabolites like TMAO, blood glucose levels, and general inflammation—and each of these appeared more important than pathways related to blood cholesterol or blood pressure,”