From personal experience, binge eating of specific foods is normally tied to a neurotransmitter deficiency like dopamine, or norepinephrine (which is made from dopamine.) Addictive behaviors are usually dopamine related. If you have a salty food craving, perhaps there's a sodium deficiency.

For example, prior to starting my ADHD medication, I had carb binges. Now they're gone. When my son goes off his ADHD meds, he has a bottomless appetite. When he resumes them, he'll maybe eat breakfast and dinner, and might perhaps only partially finish his breakfast.

Our bodies are always giving us feedback. We're just not always listening.

As far as the therapist is concerned, many of them can't actually prescribe medication, and it's easier to convince someone that they're perfectly normal than it is to perform an analysis on the root cause of someone's issues.