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Archive for May 8th, 2014

We’re a drug-taking, supplement-taking nation. So how do we do so safely?

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Do you take a vitamin or dietary supplement? It’s increasingly likely that you do, as over half of all American adults took some sort of supplement over the past 30 days. Now there’s evidence to suggest that about one-third of all Americans are taking supplements and prescription drug at the same time, which is renewing questions about risks and benefits. The same study reveals that combining supplements and prescription drugs is more common among those with certain medical conditions, compared to those without.

Many of us supplement in the absence of evidence of benefit, or even medical need. For example, there is little persuasive evidence to suggest that routine supplementation with products like multivitamins is necessary. There are exceptions of course: Those potentially becoming pregnant, those on dietary restrictions (e.g., vegans), and those with demonstrable medical need are among the cases where there is a clear benefit to vitamin supplementation, for example. The majority of us take supplements, like multivitamins, for “insurance” rather than because we have a deficiency or medical need. The evidence for non-vitamin supplements, like herbal products, is just as questionable as it is for vitamins, with few products showing meaningful health benefits. Ultimately decisions about supplements come down to evaluations of risk and benefits. Since I started working as a pharmacist, I’ve always cautioned consumers about the quality concerns and efficacy with herbal products and supplements, and the resultant risks that make me very hesitant to suggest their routine use – especially when they’re combined with prescription drugs. Yet the evidence suggests that it’s occurring – with increasing frequency. (more…)

Posted in: Herbs & Supplements, Pharmaceuticals

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