And don't forget fish and seafood as another good source of lean protein. But, I still wouldn't believe the scale. Yes the trend is downward, meaning you have lost body fat, but you can't use those numbers to reliably say that you lost muscle mass too. Boca burgers are good too. CHicken is great, and leaner cuts of red meat include pork tenderloin and beef tenderloin. Try substituting ground turkey in dishes you would do with ground beef, like chili.