Is weight loss and lack of appetite related to alcoholism or is this something else?

Maybe something else: Unexpected weight loss and lack of appetite can be due to a variety of serious diseases, such as problems digesting and absorbing food nutrients, infections like tuberculosis, cancers, autoimmune diseases, thyroid hormone disorders, etc... Sudden or unexpected weight loss, with a drop in appetite, should be evaluated by a doctor.

Wt loss: These symptoms can be the manifestion of many illnesses.