American Journal of Nutrition report. I couldn't access the article itself in AMJN because I wasn't willing to pay $40.

I'd limit the credence I give this, though. This is like so many studies in the past: limit your red meat because it will cause plaque, etc. Then, oops! it wasn't red meat at all, it was PROCESSED meats that are bad for you. Now they're saying all meat makes you fat. My guess is that it depends on HOW you fix the meat and how much of it you eat and what the rest of your diet consists of. Considering it was based on people reporting what they eat and how people lie about embarrassing items, i.e. cake, the morning doughnut, cream in their coffee, etc., etc.