I’ve worked the 12 steps thoroughly perhaps eleven or twelve times…in literally FIVE different 12-step programs. I’ve been clean and sober for over 20 years and started working the 12 steps when I was 20 years old. There are five steps that deal directly with having a relationship with God/Higher Power (steps 2, 3, 6, 7, and 11), and they are tremendously helpful, in my opinion, for overcoming addictive eating.
That said, I’ve seen people work the steps really hard and not stop eating addictively. And I’ve seen people who have a tremendously deep and powerful faith not stop eating addictively. I think God or a Higher Power is best incorporated into a system like Bright Line Eating (or a 12-step food program), but it’s not a “get out of jail free” card by any means.
I’ve seen plenty of people who don’t believe in God or a Higher Power, who don’t relate to recovery from addiction as a spiritual journey, have an awakening of sorts where a light switch is flipped deep inside and they just stop addictive eating (whether using the Bright Line Eating system or some other method), and never go back to their old ways. It doesn’t have to be done with faith as a centerpiece.