I would like to preface this statement because I have not had radiation but the glossectomy sure does make it hard to eat, especially after the 4th one. This said, I have found some great high calorie foods that you just swallow. My last surgery I lived on lobster bisque soup from Wegmans. Not sure if everyone has a Wegmans, it's a grocery store with a lot of specialty items. Anyway...just a thought I wanted to share. I found I got really tired of the sweet Ensure so this change in flavor seemed like a steak.