I don't know Jon but I can tell you what worked
for me in early sobriety....
I timed my cravings. They were 5-7 minutes in duration.
Not too long too endure discomfort.
Soooo....I took action.
Walk around ... brush teeth...drink cold water...a Lifesaver
Within 2 weeks...the lessened in both time and intensity.
By 2 or so months .... they vanished.
Now...were they mental or physical?
Darned if I know. Nor do I care.
Forward we go...side by side