Yeah, I've started avoiding Boost/Ensure because of the HFCS, etc., too.
My nutritionist recommended Benecalorie for those who need to get extra calories in. I gave it a try. It doesn't really taste like anything, it's meant to be mixed into foods/beverages (or you could down it like a shot, but I'm a bit leery of trying that). It's 330 calories in 1.5 oz. How do they pack so many calories into such a tiny package? It's almost entirely fat (33g fat, 7g protein, no carbohydrates). My only complaint is that it contains sucralose (Splenda), though it's the last ingredient and this didn't taste sweet to me. I have a feeling that something so calorie-dense is probably prone to spoilage/contamination, and would be even more so if it contained sugar. It does have preservatives/anti-bacterial agents in it.
Anyway, I mixed it into some fortified soymilk and gave it a try. No trouble digesting it, but it gave me a food coma (all that fat) and it did make me a tad nauseated (probably too much for my stomach to handle for breakfast). It definitely sated any hunger I had, and I can see it preventing me from losing any more weight (I've been on a liquid diet due to a partial obstruction).
Though I wish there were something better. I may go back to my protein smoothies (kefir, protein powder, and frozen fruit) and just omit the fruit (seeds) for now...
Diagnosed with Crohn's in April 2003 (first symptoms in 2001).
Current Medications: Imuran 125mg/day, Humira, Pred 2.5mg/day, Phenergan as needed for nausea, Bentyl as needed for cramping (have previously taken Asacol, Entocort, Flagyl, Cipro, and Cortifoam)
Dietary Supplements: Flax seed oil, Folic Acid, B12, Culturelle, Glucosamine/Chondroitin, Calcium +D