i think the main difference is that one has sulfer added. if you take either of them, be careful. no one talks about the risks associated with taking chondritin. my dad had a very bad reaction to the kind with sulfer, and his entire body became really difficult to move. he was in constant pain. when he stopped taking the medicine, it all went away.
when do you have knee problems? if it's just during exercise, maybe using braces can help a bit? if it's all the time, try getting an appointment with physical therapy or sports medicine or something like that. they can give you exercises and things to help with knee issues.
women are especially more prone to knee problems, cuz of the hip to knee ratio...it puts more stress somewhere on the knee, i think.
andrea
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