Hey Pete, the reason it doesn't work the same way for everyone (in my not so humble opinion) is that we are all different. I don't react to rice at all, but wheat is brutal for me. I can eat as much popcorn as I want, but have to watch potatoes (and yes, a watched potato does do tricks).
The NSD does not work for everyone, again, because we are all different. I have come to believe that there is a subset of AS patients who have a kleb p. connection, just as there is a subset of AS patients who are B27-. Within that subset are different groups: some have to eliminate starch completely; others can have good results by reducing/restricting starch intake.
The other thing to bear in mind is that just like any other treatment, it can take time to take effect. Generally, it's best to try going NSD for at least 2 months before determining whether or not it's helping.
Hugs,
Hugs,
