In another blow to those who swear by chondroitin for arthritis pain, an analysis of 20 studies found no eidence that the popular supplement preents or reduces joint pain.

• 对于那些信赖软骨素可以缓解关节炎疼痛的人们来说，这又是一次打击，因为对20项研究结果分析表明，没有证据显示这一颇受欢迎的补充剂能够预防或缓解关节疼痛。