We have been dealing with the sugar quandry as well because I too read that cancer feeds on sugar and yet sweet foods are all that is appealing sometimes. My husband, I should say, is 50 years old and has stage 4 metastatic NSCLC. I try to make as many sweet snacks as I can with Splenda and add Benecal to add calories and nutrients. Benecal is expensive, but if you ask your oncologist about it, they should have samples to get you started. We also met with a nutritionist last week who told us that increasing protein was critical - 68 to 86 grams a day! The reason being that we were trying just about anything to keep the weight on, with the result that my husband was stable on weight but was losing muscle mass. We've also switched to organic whole milk - 8 grams of protein per glass!
He also sees an acupuncturist although I thought he'd be the last person to try alternative or complementary medicine. And it seems to help.
A word about clinical trials as well. He is in a clinical trial and although there is a much greater imposition on our time what with all the extra tests and trips to the clinic, he has an extraordinary amount of attention focused just on him. During his last infusion visit, I counted no fewer than 17 medical professionals or study coordinators that met with him and checked in on various aspects of his condition. And for stage 4 lung, it seems that the prognosis is so negative that if a person wants to try chemo, a trial is worth considering.