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The Boston Globe

Health & wellness

Vitamin D no help for arthritis pain, Tufts study finds

The case for vitamin D supplementation keeps getting weaker and weaker. The nutrient -- hailed almost as if it had superpowers -- has failed yet again to live up to its disease-busting expectations.

This time, Tufts Medical Center researchers found that vitamin D didn’t work against knee pain caused by arthritis when it was tested against a placebo in a clinical trial published in the Journal of the American Medical Association.

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