If you set rules around creating good eating habits, then make excuses about why it’s ok to disregard them, you might be a food addict.
If you eat a Tostito, after not having one for a while, and you sigh a sigh of relief, you might be a food addict.
If you are a binge eater, you might be a food addict.
If you can’t wait to go to bed so that you can wake up and eat, you might be a food addict.
If you eat food cold, that would be more pleasing warm, you might be a food addict.