Does anyone have a healthy , weight gaining diet or suggestions they can share ?

My aunt was told she has pancreatic cancer , I'm not thrill in how slow her doctor has been going with her treatment here in NY . She is going to go to the Cancer Institue of America soon. She has lost almost 20pds, and has extreme pain.

We don't know any stage that she has , and its been 2 months she had her first chemo last tues . The p;ain is so bad she doesn't want to go on. Funny thing her blood test are good no sign of the cancer in there.

My fear is Depression and weight loss will end her life not the actually cancer .

Is there anyone who can suggest a diet or foods that will pack on the weight?

Jenn