#1 way to lose excess weight is to cut out all added sugar in all its forums, grains, and starch rich veggies (which are chemically just chains of sugars).
Discussion
I did carnivor for 2 years. Eventually my body learned how to gain weight on beef.
That must be what's happening to me, too. I suddenly gained 15lbs, and it's stuck around. Still better off than before ketovore, and the weight loss is only a secondary reason (mental clarity is the primary), so I'm sticking to it for now.