steak

En español | Every year the Washington, D.C., consumer-watchdog group Center for Science in the Public Interest ( CSPI) takes a look at menus from the country’s top chain restaurants and figures out which meals are so mind-blowingly unhealthy, they deserve some kind of dishonorable mention.

Maybe it's not really cholesterol from that big, juicy steak that's linked to heart disease. Instead, it could be a compound in red meat called carnitine, which does a number on our gut bacteria if we eat too much meat too often, suggests intriguing new research.