Eh.. that study nearly indicates a possible change in the gut microbiota when indigestible fibers like inulin and oligofructose in wheat are subtracted from a daily diet. But you can obtain these fibers from natural plant sources:
Chicory root: 41.6 g inulin, 22.9 g oligofructose
Jerusalem artichoke: 18.0 g inulin, 13.5 g oligofructose
Dandelion greens: 13.5 g inulin, 10.8 g oligofructose
Garlic: 12.5 g inulin, 5.0 g oligofructose
Leek: 6.5 g inulin, 5.2 g oligofructose
Asparagus: 2.5 g inulin, 2.5 g oligofructose
Wheat bran: 2.5 g inulin, 2.5 g oligofructose
Wheat flour, baked: 2.4 g inulin, 2.4 g oligofructose
Banana: 0.5 g inulin, 0.5 oligofructose
inhumanexperiment.blogspot.com/2009/10/prebiotics-synbiotics-and-immune-system.htmlThe perfect study to raise a false alarm for going GF. lol :)