Next time you are talking to your doctor tell her to do herself a favour and watch this YouTube lecture by Professor Robert Lustig of the University of California. He explains the metabolism of sugars, and fructose in particular, in an hour-long lecture to his senior medical students.
If possible, copy-&-paste this post and email it to her. Otherwise print it out.
Any reasonable scientific person would have to admit that there is something in the argument after viewing this video.
The "establishment" dwellers get very nervous when their cage is rattled. This stuff is diametrically opposed to everything they have been taught. But Lustig is not alone - there is an ever increasing body of evidence to support him being right.
http://www.youtube.com/watch?v=dBnniua6-oM
JohnN