Hi, I am new to the site. I am a caregiver. It is really difficult watching a friend endure chemo and radiation. He is loosing weight and I don't know how to help. He has a feeding tube but is not gaining weight. I try to remain upbeat but it is very difficult. My friend has throat cancer but was never a smoker or heavy drinker. He has had one infection with the tube and was readmitted to the hospital. The infection is gone but now he can't gain weight. Any advise?