After 6 months of misery when celebrex(200mg daily -dr wouldn't let me take more due to hbp) was doing nothing for me, I read about the NSD. I bought Carol Sinclair' book and stuck to the diet rigidly. I felt it was all or nothing. I felt improvement after 2 weeks but it took nearly 3 months to become virtually painfree and able to walk easily and get back swimming. I reintroduced starch before Xmas and have been pleasantly surprised to remain well. In the meantime I have switched to Voltarol 150 mg daily so that is probably helping. NSD was the most difficult thing I have done for a long time but definitely worth a try to push the AS into remission. I saw a rheumatologist just before Xmas and told her about how the NSD had helped me. She didn't dismiss it. She explained that the problem is that there have been no clinical studies on this and besides which she felt it was not sustainable longterm for most people. I had to agree with her on that. Good luck with the diet.