Eating low GI foods keeps insulin levels low, which in turn reduces inflammation in the body. This makes it a healthy choice for people with heart disease, diabetes or cancer (and many other chronic diseases).

For cancer patients who are having trouble gaining weight, whey protein is very digestible. See info here:
http://www.aor.ca/int/related_research/advanced_whey.php

And go to www.lef.org and search 'Whey and Glutathione'