I am not so sure about the advice to give sugar water to hypothermia victims. There is some pretty compelling reasons that practice might be counterproductive that I have seen elsewhere.

Like a lot of conventional wisdom type things, that advice may be based mostly on what people have been doing rather than what might work better.

I am more inclined to calories from fat than from sugar in such a case.

I have also seen some interesting speculations that drinking hot beverages might not be an especially good idea either.