Fructose and "FODMAPS" Can Be Digestive Demons

I'm benefitting from a low-fructose diet but it's hard to follow. Here's an article (in PDF) on Malabsorption of Fructose and "FODMAPS" that has good science to explain why some carbs cause digestive problems and how they interact with bacterial overgrowth of the small intestine.

FODMAPS stands for Fermentable Oligo-, Di- and Mono-saccharides And Polyols. Authors Jacqueline S. Barrett and Peter R. GIbson are in Australia, but it is reproduced by the UVA Health System.