I think the weight loss problem aside, it sounds like she needs to re-address her alcohol issues. Is there an AA or other church or counseling group that has helped her in the past? Could you encourage her to return there? Even offer to go with her, to show support?
Sometimes when people really are overweight, they get so much encouragement and support to lose weight, that it becomes hard to know when to stop. That may be part of what is going on with your sister.
Whatever the reason, it sounds like she needs some help for her health, and the well being of her family. Maybe you could research some ways for her to get help in the area where she lives? It's important for you to encourage her in that direction, but remember it is up to her. She is the one who must choose to change her behavior, not you. Don't take that burden on yourself.
Thank you for sharing! I wish the best for both of you!
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