I eat a clean diet similar to what you described. I am also slow to lose weight but it is coming down bit by bit. I know that some people who have damage from celiac never really retained nutrients prior to going gluten-free and as a result could lose weight or be very thin no matter what was being eaten. I've never been that person. That said, today I decided to (try) to stop paying attention to the scale and just track my body measurements. How do your clothes fit? I ask just because, though my weight hasn't really decreased, since starting to eat a very clean diet my weight has gone down very little but my waist size (and other body measurements) have decreased much more dramatically. I'm wondering if you have a similar situation? I figure that if I feel good and am getting smaller I'm not going to pay so much attention to the numbers.
Hope you are doing well and now seeing some weight loss!