Probiotics May Help Prevent Crohn's Disease

Saw an interesting mention of a research report in a Wall Street Journal article. Here's the excerpt:

Crohn's Disease: Probiotics—live microorganisms that appear to improve gastrointestinal health—may prevent the onset of Crohn's disease, according to a study in the Proceedings of the National Academy of Sciences. The researchers fed young mice, who had been bred to develop a Crohn's-like inflammatory bowel disease, diets that included a high dose of eight probiotic bacteria strains. The disease, ileitis, was entirely prevented in five of those 11 mice, and markedly less severe in five of the remaining six. A lower dose of the bacteria, given to another set of mice, provided little beneficial effect. The researchers suggested, based on necropsies of the mice, that the probiotics guarded against ileitis by stimulating the immune system of the gut lining.

Caveat: It's not known whether probiotics would prevent actual Crohn's disease in humans, or what dose would be required. (Read the Report)

This kind of raises an interesting question around the Specific Carbohyrdrate Diet (which I'm using). How do you train or sensitize your immune system to handle different types of gut bacteria if you're on a diet that is targeted at eliminating many strains of bacteria in the gut? Perhaps you slowly introduce new bacteria (or foods that allow those other bacteria to develop). That way your body can slowly develop (or re-develop) it's sensitivity to these.