This is an interesting article for a large study where those that increased their red meat consumption actually had a higher incidence of diabetes than those that didn't.
It's not clear what's happening in the body, but there are a few theories. It's possible that heavy red meat consumption can lead to iron overload, which sets the stage for insulin resistance.
It's also possible that compounds called play a role.
"Our understanding is that, especially [when they occur in] processed meats, these nitrosamines can cause inflammation," explains , who directs the diabetes center at Massachusetts General Hospital.
And there's also some evidence that nitrosamines can damage the cells in the pancreas that make insulin. But experts say more research is needed to understand these connec