New study says evidence insufficient to recommend common vitamins

New study says evidence insufficient to recommend common vitamins

In a previous column, I discussed the limited efficacy of the $14 billion Americans spend annually on cold and flu supplements. The bottom line was that we can get the vast majority of our immune-boosting vitamins from a diverse healthy diet, good sleep hygiene, stress control and early morning sunlight.  Now comes a massive meta-analysis from JAMA …

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