There is very, very little science in *any* dietary recommendations for J-pouchers. Don't confuse carefully grouped categies of foods assigned important-sounding scientific names with actual scientific evidence of health benefits. Fortunately, you can (and sometimes should) do the definitive research yourself, on your own body, at least if more proven interventions aren't doing the trick for you. Taking the time to study what foods (or goups of foods) actually make you feel better or worse over time can be quite useful, though it can also be *very* hard to tell those effects from unrelated (essentially random) changes. Other people's theories, beliefs, and even successes can at best give you some interesting ideas to try.