Hi John
Yes, we have been going "round and around on this topic". From feedback I have had I gather other people have learned from the discussion and thanks for being so patient.
You will remember the original post concerned a group of people at an AS re-hab exercise course. I can identify them as 'diagnosed with AS', but I have no idea whether they have AS or not. I know most do not show an interest in diet as a treatment for their condition. I accept that there must be many who have not tried the diet properly etc. for all the reasons you have given. I asked whether there may be some who genuinely were not helped by diet.
You went into some detail about flare response to starch. I know it because I have felt it. But I am not convinced everyone I see diagnosed with AS has the same experience. They may not have the Ebringer defined AS, but they are still in the AS group and I can't tell the difference.
Bilko has been willing to accept that "some of the people in the group who do not respond to diet will have the wrong diagnosis". Perhaps there was a hint of acceptance in your last post that those wrongly diagnosed could be put into the group who didn't respond to diet. Also even Ebringer found 2% among the REAL AS (the balance of your quoted 98% ) who did not respond so these could also be added.
This seems to have established that there is a group of people diagnosed with AS who do not respond to LSD / NSD diet.
Wally