I take a multi, fish oil, and vitamin D. I'm not really sure those are needed, but I figure they won't hurt. I mostly trust in a well-balanced diet.
AS symptoms started 1991. Official dx in 2006 with HLA-B27+, fused SIJ, bone spurs in back, extreme rib/hip pain, and other family with SpA. Started Enbrel in 2006 with good results, but stopped in 2010 due to nerve damage (MS) from it. Getting good results with no-starch diet since 2011.