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health

vitamin shelf life
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Vitamins past their expiration date lose potency and may not be as effective to treat vitamin deficiency or to provide extra nutrients! purchase vitamins that contain a printed sale by date or expiration date.
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Most everything lasts a while past expiration before deterioration, including food.  Expiration dates have a margin of safety built in.  That being said, the above is true, but vitamins usually have way more that anyone needs in them so a little deterioration in potency isn't that big a deal depending on why you're taking them.  After all, much of them just goes down the toilet anyway, so again, a margin of safety is built in there, too.
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