I read a great blog recently about why people fail on the paleo diet and one reason was the "lean meat" thing. Some people go too low fat based on the theory that wild animals didn't used to have as much fat as today's animals. But they would have had some fat, and it all would have been eaten. So eating skinless, boneless chicken breasts sure isn't paleo! If you cut back the carbs AND fat you'll have no source of energy and it will just be debilitating on your body.