To add a little more to the sugar debate.....
One of the primary diagnostic tools for Cancer is the PET Scan, where sugar molecules are irradiated with a short half-life radioactive tracer.
The patient fasts for 24 hrs and then the irradiated sugar is transfused and detected with the PET Scanning equipment. This protocol depends on the FACT that when starved of sugar (fasting) any Cancer cells will grab the irradiated sugar FIRST and then be detected by the positron emissions as "hot spots" or cancer cell sites.
Thus the Cancer cells ability to use sugar in preference to normal cells clearly demonstrates the link ?
Right on! My Mom has cancer and has been telling me how sugar feeds cancer growth. Her example was exactly what you wrote regarding the PET scans.