Does Carnivore improve body composition? I can confidently say yes it indeed does. I have been full carnivore about 11 months now and was meat heavy keto before that for 15 months.
Total of 26 months little to no carbs and very meat heavy. Particularly fatty red meat. Feel better than I did in my 20s. And almost ZERO weight training. I only recently started hitting the weights again to go that last 20 or so pounds to my ideal weight.
Pic of me in the orange is May 2017 at my little brothers wedding. Sitting at a sloppy 370 pounds. Pic of me in the black is just 10 minutes ago at 215 pounds or so. Yes.... DO IT!