Cancer cells feel a special appetite for a type of sugar called glucose, research demonstrated nearly a hundred years ago. The tumor uses glucose like a sports car uses gasoline -- it depends on it to burn faster, to grow and to multiply rapidly. In cancer cells, glucose superaccelerates cell division in what is known as the Warburg effect. New research shows that in one in four human tumors, there is an excess of glucose receptors in the external face of the cell membrane and this protein acts as a magnet attracting all the glucose from the bloodstream.

Source: Mechanism that makes tumor cells sugar addicted discovered