David,

Even though I was putting a fair number of calories into my peg with Boost, I was really still pretty tired 4 weeks post treatment. However, as Amy stated, that also has a lot to do with the radiation and chemo. I started feeling stronger around week 8 when I was eating enough solid food to have my PEG taken out, but I can't isolate it just to eating the solid food.

I think that you should try to eat a combination of the liquids and the solids. The liquids are your comfort food right now, they are what you know works to get the calories you need. However, it is important that mentally you don't start convincing yourself that liquids are the only option, so try and replace one or two of the cans with that amount in solid food.

Sarah