Something I have made in the past is to slow cook a pork tenderloin. They are generally low in fat - check your label to make sure you have a lean cut. Slow cook a 2 pound tenderloin on low for about 8 hours. I put a dry rub on it, or if I don't have any, some BBQ sauce. After it's done, flake it apart with a fork or slick reeeeeealy thin and put BBQ sauce on it and heat it back up. Yum!
We're fat chicks, not doctors. Please see your physician before taking advice found on the internet.