My husband was on 6 cans of Nutren 2.0 which has 500 calories a can. It seems most males need at least 3000 calories to maintain weight. Dan didn't get more than 4 cans in most of the time as he also had problems with fullness and acid reflux, so he still lost 50 lbs. I think you need to talk to a nutritionist if you haven't already.
God bless and take care,
Debbie

Debbie - Caregiver for husband, Dan, diagnosed with tongue cancer 7/03. Partial gloss., mod. neck dissections, graft. Recurrence neck tumor 12/03. Radical left neck dissection 12/24/03-unable to get all the tumor. 8 weeks chemo/rad beginning 1/12/04.