Thank you for your kind words. I hope your friend remains a survivor for a very long time. My thoughts are with him.
I have heard of Ensure. Several years ago I was on the road to recovery from a totally unrelated disease. After the doctors realized I was going to live, my weight became an issue. In just a few months I had dropped from 140 to 95. Their first recommendation was Ensure. I tried drinking it, I gagged, coughed, couldn't swallow. I couldn't drink the stuff. My doctor told me I had three choices; eat, Ensure, or a feeding tube. I started eating the next day, small frequent meals, but I ate. It was different then, I was recovering, now I haven't even packed for the trip.
The more I read, the more confused I get. My thinking is stay positive, I've already beat one disease, what's one more!