Yes, the study about carnitine being bad for you has already been debunked. Many of these “studies” come from front groups for animal rights whackos. These come to mind - Union of Concerned Scientists (they may be concerned, but they aren’t scientists), Center for Science in the Public Interest, and Physician’s Committee for Responsible Medicine (front group for PETA).
Here is a link to a conservative site that gives good info on food and science issues (lefties say they are backed by “big food”) www.consumerfreedom.com And here is the link to the story about the flawed study on carnitine and meat.
http://www.consumerfreedom.com/2013/04/latest-study-on-meat-misses-the-mark/