The context of the following conversation is Jan was very overweight and due to medical issues her doctor advised her she needed to cut back on her food intake.:
Jan says I'm not eating much..
The friend responds Why?.
Jan responds Due to my overweight, doctor have advise me to cut back on food intake..
The friend responds That's good, it's necessary for your medical issues..
Jan responds Yeah..
The friend responds Let me know if I can help somehow..