well started to use 500 mg msm every other day about 1 month ago and It has helped with the joints ,but early last week started to feel minor detox symtoms, I found msm in the index of cutlers book and looked it up ,and found that cutler does not recomend it and also says that it can mobilize mercury in some people and does not nessarily remove it from the body like regular chelators do ,this would explain the detox symtoms I was getting , so will stop using it , do not want to go backwards , so just some info if someone is considering using msm in the future