From my own experience, food addiction has caused me as much, if not more pain than my using or drinking. I have lost weight (which I don't need to, weigh about 52kg now and I'm tallish) since giving up benzos, alcohol and opiates but the underlying food issues are still causing me pain.
The only time I had any relief from it was my first pregnancy, over 13 years ago when I was working the 12 steps on both my drug and food addictions.
Best of luck. I so know what it's like to constantly swap one addiction for another.