> > Hmm. Are there any adverse side effects of being *under* weight?

> may be more sensitive to hypoglycemia that is in itself very damaging.( no
> reserves to buffer...

Liver glycogen stores last 12 - 24 hours.  After that, fat is accessed for
conversion to glucose.  Being underweight is not associated with
hypoglycemia in itself; being overweight (i.e., insulin resistance) can
contribute to post-meal low blood sugar if too many high glycemic
carbohydrates are consumed (relative to protein and fat).

Rob