Check out the book brain over binge on amazon. It's only $13. I also recommend watching the binge eating disorder video on YouTube from the channel breelovesbeauty .... I suffered from bed and these things helped me a lot. I hope it helps you
Part of the problem with gluten-free diets is eating the gluten-free processed foods, which are loaded with sugar and starches and other unhealthy options, which can just reinforce the desire to consume more of them. There are good ones found in health food stores, but even there most have unwanted and unhealthy ingredients. But being gluten-free doesn't limit the diet all that much if you just eat the gluten-free whole foods people have always eaten. Most gluten problems are really just wheat problems, though many do go farther than that, but there are a lot of foods out there not made of gluten-containing grains. The other part of this is that this might be something psychological -- most compulsive behavior is. You might be doing this to hide from something else, or because your life is unfulfilling. If that's the case talking to a psychologist might help you see what's missing.