I am half way through Mark's book. A good read. Started P90X a year ago. I also did two rounds of Insanity afterwards. Now I do both on different days and rest 1 to 2x a week. I hv been gluten free for a year. I don't buy the replacement GF foods. I eat very well...but I CANNOT LOSE ANY FAT. I am 47 and very frustrated. I am reluctant to try the Primal eating because I have tried everything and am afraid to be dissapointed again. I generally eat primally anyway but I think my carbs do add up quickly. Any advice?