I know alcoholism is also related to sugar cravings. Apple cider vinegar helps the body
process sugars and carbohydrates more efficiently and helps the body displace uric acid so in a convoluted way apple cider vinegar may reduce gut irritation from sugars that causes one to crave alcohol to relieve the allergic reaction of the body to alcohol. If you treat alcoholism as an allergy then I see apple cider vinegar as a good healthy supplement to combat that allergy.

I would also consider drinking 6-8 glasses of water with a dash of unrefined sea salt every day for many of the same reasons. Water is critical for moving toxins through the body and sea salt is great for proper mineralization.

Balancing the gut pH, hydrating the body, and remineralizing one's blood is like giving your body that is a battery the proper acids and liquids it needs to operate efficiently. Get the right balance and don't overdo it and you might find the right balance for your body.